文章來源：中國鐵塔(ta)股份有限公司 發布時間：2021-05-28
“長松大哥的(de)(de)桌面上始終(zhong)擺滿了書，不(bu)管是(shi)行業(ye)(ye)內的(de)(de)還是(shi)行業(ye)(ye)外的(de)(de)，只要是(shi)他(ta)感興趣的(de)(de)領域，他(ta)都愿意去翻(fan)一(yi)翻(fan)，學一(yi)學。”提到李長松，小劉止(zhi)不(bu)住地稱贊。在同事眼里，李長松總是(shi)對行業(ye)(ye)研(yan)究有著一(yi)種狂(kuang)熱之情(qing)，這(zhe)股(gu)熱情(qing)似乎永遠也澆不(bu)滅，成為他(ta)不(bu)斷向前的(de)(de)動力。
第一(yi)次接(jie)觸李長松的(de)人(ren)，或(huo)多或(huo)少(shao)會覺得(de)他有些(xie)“悶悶的(de)”，話不多但提到工作、研究眼里(li)總(zong)閃爍著熱忱與(yu)執著。李長松是哈爾濱鐵塔(ta)的(de)動(dong)力配套維護高級(ji)經理(li)，今(jin)年(nian)是他在(zai)(zai)通信行業(ye)里(li)摸滾(gun)打(da)爬(pa)的(de)第24個年(nian)頭，“我從上(shang)學開始就(jiu)是搞得(de)這行，畢業(ye)后就(jiu)選擇了與(yu)專業(ye)對口的(de)行業(ye)，所以(yi)一(yi)干就(jiu)干到了現(xian)在(zai)(zai)。”
書要會看，也要會用
對(dui)于(yu)李長松而(er)言，多翻書、多思考是興(xing)趣使然，也是工作需要。“這個行業，我們(men)的(de)工作看(kan)似簡單，但隨(sui)著一點點深入會越(yue)來越(yue)難。隨(sui)著年齡的(de)增長是會積累一些東(dong)西，然而(er)永遠(yuan)也趕不上最新的(de)，所以需要不斷學(xue)習不停學(xue)習。”
學(xue)習(xi)不僅僅局限(xian)于書本，也要將理(li)論付(fu)諸實踐，這(zhe)是李長松(song)工(gong)作多(duo)年(nian)最(zui)大(da)的(de)體會。多(duo)年(nian)前，他和一位(wei)老師傅憑(ping)借雙手(shou)與已有的(de)理(li)論知(zhi)識(shi)、過往經驗，參考國外技(ji)術為一臺(tai)800千瓦的(de)大(da)型(xing)發電機做(zuo)了(le)(le)散(san)熱水箱(xiang)，“這(zhe)是很久以(yi)前的(de)事情了(le)(le)，原來這(zhe)種機器是放船上(shang)用(yong)的(de)，一般都會有水箱(xiang)來散(san)熱。”李長松(song)回憶(yi)道，“但那時(shi)候我(wo)們那臺(tai)沒有水箱(xiang)，我(wo)們得自己弄一個(ge)大(da)水箱(xiang)來進行散(san)熱冷(leng)卻(que)。但當(dang)時(shi)因(yin)為技(ji)術有限(xian)，依(yi)靠國外的(de)技(ji)術需要50萬，這(zhe)50萬僅僅是材(cai)料費。后(hou)來我(wo)和一位(wei)老師傅琢磨(mo)了(le)(le)兩個(ge)月，自己做(zuo)了(le)(le)一個(ge)（水箱(xiang)），把機器拆了(le)(le)，里邊的(de)管路也自己改裝，連螺絲什么的(de)都是自己弄，焊接(jie)配件(jian)，等等，一共花了(le)(le)不到5萬塊。”雖(sui)然時(shi)隔多(duo)年(nian)，但再度提起，李長松(song)卻(que)記憶(yi)猶新。“做(zuo)完以(yi)后(hou)運行也都可以(yi)，我(wo)們都很開(kai)心，整(zheng)個(ge)人(ren)都輕松(song)起來了(le)(le)。”
遇到問題，就要解決問題
“長松(song)大哥做事穩(wen)當(dang)，愛‘較(jiao)真(zhen)’，遇到(dao)問題一(yi)(yi)(yi)(yi)(yi)定(ding)(ding)想(xiang)方(fang)(fang)設法(fa)(fa)解決，感覺有他在(zai)(zai)就(jiu)(jiu)沒(mei)有什(shen)么(me)解決不了(le)的(de)(de)(de)問題，和他一(yi)(yi)(yi)(yi)(yi)起工作(zuo)很踏實(shi)也很放心。”“穩(wen)當(dang)”“較(jiao)真(zhen)”，是(shi)同(tong)事給李(li)(li)長松(song)的(de)(de)(de)第二(er)個(ge)評(ping)價(jia)。做好自(zi)(zi)己(ji)的(de)(de)(de)工作(zuo)，有問題就(jiu)(jiu)想(xiang)方(fang)(fang)設法(fa)(fa)解決它，這個(ge)信條從剛畢業那會兒起，李(li)(li)長松(song)堅(jian)持到(dao)了(le)現(xian)在(zai)(zai)，久而久之(zhi)，大家(jia)都覺得他做事“穩(wen)當(dang)”。鐵(tie)塔公(gong)(gong)司成立(li)初期在(zai)(zai)與三家(jia)電(dian)(dian)信運(yun)營商進行(xing)(xing)資產(chan)交割(ge)時(shi)，需要對蓄(xu)(xu)電(dian)(dian)池組(zu)(zu)狀(zhuang)況進行(xing)(xing)技術甄別，這關乎(hu)國有資產(chan)的(de)(de)(de)保值增值。在(zai)(zai)清查過程中，各個(ge)專(zhuan)(zhuan)業組(zu)(zu)隊員抬著30多公(gong)(gong)斤重的(de)(de)(de)測(ce)試(shi)(shi)儀(yi)(yi)，對轄區(qu)內近萬座基(ji)站機房一(yi)(yi)(yi)(yi)(yi)組(zu)(zu)一(yi)(yi)(yi)(yi)(yi)組(zu)(zu)地測(ce)試(shi)(shi)蓄(xu)(xu)電(dian)(dian)池數據。“每個(ge)基(ji)站都有蓄(xu)(xu)電(dian)(dian)池，數量(liang)(liang)龐大，但質量(liang)(liang)、使用(yong)情況是(shi)好是(shi)壞沒(mei)法(fa)(fa)區(qu)分，影響日后(hou)維護工作(zuo)，時(shi)間(jian)緊任務重，原來傳統的(de)(de)(de)方(fang)(fang)法(fa)(fa)在(zai)(zai)基(ji)站上(shang)(shang)對電(dian)(dian)池進行(xing)(xing)檢測(ce)一(yi)(yi)(yi)(yi)(yi)個(ge)基(ji)站一(yi)(yi)(yi)(yi)(yi)測(ce)就(jiu)(jiu)得耗(hao)費一(yi)(yi)(yi)(yi)(yi)天至(zhi)兩(liang)天時(shi)間(jian)，速(su)度非常慢，來不及。” 用(yong)什(shen)么(me)辦法(fa)(fa)能快速(su)判斷(duan)蓄(xu)(xu)電(dian)(dian)池的(de)(de)(de)好壞？有沒(mei)有一(yi)(yi)(yi)(yi)(yi)種(zhong)測(ce)試(shi)(shi)儀(yi)(yi)既能快速(su)判斷(duan)還便(bian)于攜帶？苦思(si)冥(ming)想(xiang)后(hou)，李(li)(li)長松(song)利用(yong)自(zi)(zi)身多年積累(lei)的(de)(de)(de)技術經驗，嘗試(shi)(shi)自(zi)(zi)己(ji)動手制作(zuo)測(ce)試(shi)(shi)儀(yi)(yi)。“從設計到(dao)測(ce)試(shi)(shi)驗證再到(dao)最后(hou)成型，我們(men)(men)用(yong)了(le)一(yi)(yi)(yi)(yi)(yi)個(ge)半(ban)月的(de)(de)(de)時(shi)間(jian)。”圖(tu)紙是(shi)大家(jia)一(yi)(yi)(yi)(yi)(yi)起畫的(de)(de)(de)，材料(liao)是(shi)現(xian)買的(de)(de)(de)，線路是(shi)一(yi)(yi)(yi)(yi)(yi)根一(yi)(yi)(yi)(yi)(yi)根搭上(shang)(shang)的(de)(de)(de)……“我們(men)(men)在(zai)(zai)市場上(shang)(shang)采購表殼、內部元(yuan)件后(hou)自(zi)(zi)己(ji)加(jia)工，做出(chu)了(le)雛形。一(yi)(yi)(yi)(yi)(yi)開始做好后(hou)雖然各方(fang)(fang)面運(yun)行(xing)(xing)良好，但運(yun)行(xing)(xing)過程中散熱量(liang)(liang)大，而且也不易便(bian)攜。”為了(le)讓設備更便(bian)于攜帶，李(li)(li)長松(song)又和同(tong)事加(jia)班加(jia)點改進方(fang)(fang)案，優(you)化樣(yang)本。最終(zhong)，兩(liang)款具有存儲(chu)、定(ding)(ding)位(wei)及遠程抄送(song)功能的(de)(de)(de)蓄(xu)(xu)電(dian)(dian)池綜合測(ce)試(shi)(shi)儀(yi)(yi)（LJCT-Ⅲ、LJCT-IV）誕生(sheng)。該種(zhong)儀(yi)(yi)器可在(zai)(zai)短(duan)時(shi)間(jian)內迅速(su)判斷(duan)蓄(xu)(xu)電(dian)(dian)池性(xing)能，操(cao)作(zuo)簡便(bian)、工作(zuo)量(liang)(liang)小(xiao)、測(ce)試(shi)(shi)歷時(shi)短(duan)、經濟實(shi)用(yong)、數據準(zhun)確，在(zai)(zai)哈爾(er)濱(bin)資產(chan)清查工作(zuo)中獲得了(le)廣泛使用(yong)、發揮(hui)了(le)重要的(de)(de)(de)作(zuo)用(yong)，并(bing)獲得多項(xiang)國家(jia)專(zhuan)(zhuan)利。
“基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)微網化共享”改造方(fang)案(an)是李長松(song)為(wei)(wei)了(le)解(jie)決工作(zuo)中(zhong)遇到的(de)難(nan)(nan)(nan)題(ti)設(she)計的(de)又一(yi)(yi)款行之有(you)效的(de)方(fang)案(an)。基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)遇到停電(dian)(dian)(dian)需(xu)(xu)要到每個基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)進行人工發(fa)電(dian)(dian)(dian)補給電(dian)(dian)(dian)力(li)，人員、車輛、發(fa)電(dian)(dian)(dian)機(ji)等需(xu)(xu)要耗(hao)費(fei)(fei)大(da)量(liang)的(de)成(cheng)(cheng)本(ben)，且運輸途中(zhong)也耗(hao)費(fei)(fei)一(yi)(yi)定的(de)時間，為(wei)(wei)了(le)盡可能降低成(cheng)(cheng)本(ben)，提高(gao)效率(lv)，李長松(song)設(she)計出(chu)“基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)微網化共享”改造方(fang)案(an)，該(gai)方(fang)案(an)由1個微網節(jie)(jie)(jie)點站(zhan)(zhan)(zhan)(zhan)(zhan)和(he)N個微網共享站(zhan)(zhan)(zhan)(zhan)(zhan)組(zu)(zu)成(cheng)(cheng)基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)微網單元，共享站(zhan)(zhan)(zhan)(zhan)(zhan)不配(pei)(pei)備(bei)蓄電(dian)(dian)(dian)池組(zu)(zu)，市電(dian)(dian)(dian)中(zhong)斷時由節(jie)(jie)(jie)點站(zhan)(zhan)(zhan)(zhan)(zhan)提供電(dian)(dian)(dian)力(li)保(bao)障，無需(xu)(xu)油機(ji)發(fa)電(dian)(dian)(dian)保(bao)障。“這就好比設(she)立一(yi)(yi)座核心(xin)組(zu)(zu)，以它為(wei)(wei)圓(yuan)心(xin)服務于一(yi)(yi)定區(qu)域內(nei)各個基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)。”李長松(song)介紹道。據(ju)了(le)解(jie)，試點微網站(zhan)(zhan)(zhan)(zhan)(zhan)年(nian)(nian)節(jie)(jie)(jie)約運營成(cheng)(cheng)本(ben)53.7%，項目(mu)整體投資回收期為(wei)(wei)2.43年(nian)(nian)，蓄電(dian)(dian)(dian)池配(pei)(pei)備(bei)總量(liang)降為(wei)(wei)原有(you)55%，開(kai)關電(dian)(dian)(dian)源減(jian)少20%的(de)模塊配(pei)(pei)置容(rong)量(liang)，解(jie)決了(le)兩個不具(ju)備(bei)發(fa)電(dian)(dian)(dian)條(tiao)件難(nan)(nan)(nan)點基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)的(de)電(dian)(dian)(dian)力(li)保(bao)障，實(shi)現(xian)基(ji)站(zhan)(zhan)(zhan)(zhan)(zhan)發(fa)電(dian)(dian)(dian)服務費(fei)(fei)收入(ru)增收，大(da)幅減(jian)少發(fa)電(dian)(dian)(dian)次數和(he)區(qu)域性大(da)面積停電(dian)(dian)(dian)帶來(lai)的(de)發(fa)電(dian)(dian)(dian)難(nan)(nan)(nan)題(ti)，降低了(le)電(dian)(dian)(dian)源配(pei)(pei)置及(ji)維(wei)護(hu)工作(zuo)量(liang)，大(da)幅提升了(le)維(wei)護(hu)指標。
鉆研新能源，開啟新大門
善于(yu)學習，樂于(yu)總(zong)結(jie)思考，讓(rang)李長(chang)松總(zong)能(neng)(neng)根據實際情況提出(chu)“新(xin)點子(zi)”找(zhao)到(dao)(dao)(dao)(dao)“新(xin)方法(fa)”。黑龍(long)江地(di)處我國(guo)東北(bei)地(di)區，屬(shu)(shu)(shu)于(yu)溫(wen)帶(dai)大(da)(da)陸性季(ji)(ji)風氣候，冬季(ji)(ji)較(jiao)(jiao)長(chang)，常(chang)年(nian)(nian)溫(wen)度(du)較(jiao)(jiao)其他地(di)區偏低(di)，冬夏(xia)兩季(ji)(ji)溫(wen)差可達70℃，對于(yu)傳統基站(zhan)(zhan)所(suo)使(shi)用(yong)的(de)(de)(de)(de)鉛(qian)(qian)酸(suan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)極為不(bu)(bu)利(li)(li)，易造(zao)成(cheng)較(jiao)(jiao)大(da)(da)傷害。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)鼓脹(zhang)、開裂(lie)嚴重，壽命(ming)普遍較(jiao)(jiao)短，這(zhe)給公司日常(chang)維護提出(chu)難題。2015年(nian)(nian)新(xin)能(neng)(neng)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽(qi)(qi)(qi)(qi)車(che)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)逐步(bu)(bu)退(tui)役，看到(dao)(dao)(dao)(dao)相關(guan)報道(dao)后(hou)李長(chang)松突發奇想，退(tui)役的(de)(de)(de)(de)汽(qi)(qi)(qi)(qi)車(che)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)能(neng)(neng)不(bu)(bu)能(neng)(neng)放(fang)到(dao)(dao)(dao)(dao)基站(zhan)(zhan)里二次(ci)(ci)利(li)(li)用(yong)？與(yu)同(tong)事商(shang)討(tao)后(hou)，李長(chang)松等(deng)提出(chu)了(le)將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽(qi)(qi)(qi)(qi)車(che)退(tui)役的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)梯(ti)次(ci)(ci)利(li)(li)用(yong)于(yu)通(tong)信(xin)(xin)基站(zhan)(zhan)的(de)(de)(de)(de)構想。“早(zao)在(zai)2012年(nian)(nian)的(de)(de)(de)(de)時候，我們(men)(men)就用(yong)過鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)，但(dan)當(dang)時了(le)解不(bu)(bu)多，用(yong)的(de)(de)(de)(de)也(ye)極少。2015年(nian)(nian)看到(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽(qi)(qi)(qi)(qi)車(che)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)退(tui)役的(de)(de)(de)(de)報道(dao)以后(hou)就想嘗試(shi)一(yi)下，一(yi)開始把(ba)握(wo)也(ye)不(bu)(bu)是很大(da)(da)，因為動(dong)(dong)(dong)(dong)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)和以往的(de)(de)(de)(de)鉛(qian)(qian)酸(suan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)性能(neng)(neng)不(bu)(bu)太一(yi)樣(yang)。”車(che)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)屬(shu)(shu)(shu)于(yu)大(da)(da)功率(lv)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)型電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)，而(er)基站(zhan)(zhan)所(suo)用(yong)的(de)(de)(de)(de)鉛(qian)(qian)酸(suan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)屬(shu)(shu)(shu)于(yu)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流、長(chang)時間放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)型電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)，二者存在(zai)本(ben)質(zhi)區別。為了(le)驗(yan)證(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽(qi)(qi)(qi)(qi)車(che)退(tui)役的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)是否能(neng)(neng)應用(yong)到(dao)(dao)(dao)(dao)基站(zhan)(zhan)當(dang)中，李長(chang)松與(yu)同(tong)事進(jin)行(xing)了(le)研究分析。“后(hou)來我們(men)(men)找(zhao)了(le)一(yi)批電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)放(fang)到(dao)(dao)(dao)(dao)基站(zhan)(zhan)里去測試(shi)，慢(man)慢(man)開展研究。同(tong)時，在(zai)哈工(gong)大(da)(da)，我們(men)(men)與(yu)學校的(de)(de)(de)(de)教授進(jin)行(xing)實驗(yan)測試(shi)，充放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)不(bu)(bu)停循環，最高(gao)一(yi)次(ci)(ci)到(dao)(dao)(dao)(dao)90多次(ci)(ci)，就是這(zhe)樣(yang)模擬基站(zhan)(zhan)環境(jing)，不(bu)(bu)斷測試(shi)，最后(hou)才(cai)逐步(bu)(bu)論(lun)證(zheng)了(le)可行(xing)性。”試(shi)點測試(shi)發現，梯(ti)次(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)相比鉛(qian)(qian)酸(suan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)在(zai)循環壽命(ming)、能(neng)(neng)量(liang)密度(du)、高(gao)溫(wen)性能(neng)(neng)等(deng)方面具備明顯優勢(shi)，各項(xiang)性能(neng)(neng)指標全(quan)面優于(yu)鉛(qian)(qian)酸(suan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)，達到(dao)(dao)(dao)(dao)了(le)預(yu)期效果。該試(shi)點項(xiang)目(mu)得到(dao)(dao)(dao)(dao)了(le)國(guo)家及中國(guo)鐵塔(ta)相關(guan)領導的(de)(de)(de)(de)高(gao)度(du)認可，基于(yu)前期他在(zai)此方面做的(de)(de)(de)(de)大(da)(da)量(liang)工(gong)作，2016年(nian)(nian)，李長(chang)松被中國(guo)鐵塔(ta)安排參與(yu)“動(dong)(dong)(dong)(dong)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)在(zai)通(tong)信(xin)(xin)基站(zhan)(zhan)的(de)(de)(de)(de)梯(ti)次(ci)(ci)應用(yong)”項(xiang)目(mu)的(de)(de)(de)(de)研發工(gong)作。
默默耕(geng)耘，不問(wen)收(shou)獲(huo)，李長松(song)工(gong)(gong)(gong)作(zuo)(zuo)(zuo)(zuo)之余將自己(ji)(ji)的(de)(de)發現整理成文刊發于(yu)(yu)行業(ye)、省、市專業(ye)雜志上(shang)，將自己(ji)(ji)的(de)(de)工(gong)(gong)(gong)作(zuo)(zuo)(zuo)(zuo)經驗(yan)分(fen)享給更多的(de)(de)人，對于(yu)(yu)他(ta)(ta)而言也是(shi)樂事(shi)一樁。在采(cai)訪期間，李長松(song)提到最多的(de)(de)，不是(shi)獲(huo)得的(de)(de)創新實踐成果金獎(jiang)，也不是(shi)鐵塔勞動(dong)模范，而是(shi)自己(ji)(ji)的(de)(de)工(gong)(gong)(gong)作(zuo)(zuo)(zuo)(zuo)。在他(ta)(ta)看來，獲(huo)得榮譽的(de)(de)樂趣遠不及親手解(jie)決工(gong)(gong)(gong)作(zuo)(zuo)(zuo)(zuo)中遇到的(de)(de)難(nan)題而獲(huo)得的(de)(de)快感。“我(wo)這個人不怎么在意這些東(dong)西，對我(wo)來說就(jiu)是(shi)本職(zhi)工(gong)(gong)(gong)作(zuo)(zuo)(zuo)(zuo)，把工(gong)(gong)(gong)作(zuo)(zuo)(zuo)(zuo)中的(de)(de)重點(dian)難(nan)點(dian)都解(jie)決了，我(wo)就(jiu)高興。”李長松(song)笑著說。
【責任編輯：趙藝涵】
