<button id="ykzvi"></button>
<button id="ykzvi"><xmp id="ykzvi"><xmp id="ykzvi">
<ins id="ykzvi"><form id="ykzvi"><xmp id="ykzvi"><ins id="ykzvi"><form id="ykzvi"></form></ins><xmp id="ykzvi"><ins id="ykzvi"></ins>
<xmp id="ykzvi">
<button id="ykzvi"><form id="ykzvi"><button id="ykzvi"></button></form></button><form id="ykzvi"><xmp id="ykzvi"><form id="ykzvi"></form><button id="ykzvi"></button><form id="ykzvi"></form>
<button id="ykzvi"></button>
<ins id="ykzvi"></ins>
<xmp id="ykzvi"><xmp id="ykzvi"><ins id="ykzvi"><form id="ykzvi"><ins id="ykzvi"></ins></form></ins><form id="ykzvi"></form><xmp id="ykzvi"><xmp id="ykzvi"><button id="ykzvi"></button><ins id="ykzvi"><button id="ykzvi"><ins id="ykzvi"></ins></button></ins><button id="ykzvi"><ins id="ykzvi"></ins></button>
<ins id="ykzvi"></ins><xmp id="ykzvi"><ins id="ykzvi"></ins><ins id="ykzvi"></ins>
<button id="ykzvi"><button id="ykzvi"><ins id="ykzvi"></ins></button></button><button id="ykzvi"><button id="ykzvi"><button id="ykzvi"></button></button></button><xmp id="ykzvi"><ins id="ykzvi"><button id="ykzvi"></button></ins>
<xmp id="ykzvi">
<ins id="ykzvi"><button id="ykzvi"></button></ins><ins id="ykzvi"><ins id="ykzvi"></ins></ins><button id="ykzvi"><form id="ykzvi"></form></button><button id="ykzvi"><button id="ykzvi"></button></button><form id="ykzvi"><ins id="ykzvi"></ins></form><ins id="ykzvi"></ins>
<ins id="ykzvi"><button id="ykzvi"><form id="ykzvi"></form></button></ins><ins id="ykzvi"><form id="ykzvi"></form></ins>
<ins id="ykzvi"><form id="ykzvi"><button id="ykzvi"></button></form></ins>
<ins id="ykzvi"><form id="ykzvi"></form></ins>
<xmp id="ykzvi"><form id="ykzvi"></form><button id="ykzvi"></button>
當前位置：深圳新聞網(wǎng)首頁(yè) > 圖片視覺(jué) > 時(shí)事社會(huì ) > 

三代鐵路線(xiàn)路檢修工 四十年傳承更上一層

2018-10-19 09:37來(lái)源：新華網(wǎng)

　　10月17日，李峰在上海何家灣站內鐵軌上演示早期利用弦線(xiàn)和鋼尺手工測量鐵軌平整度的操作。

　　改革開(kāi)放四十年間，我國鐵路列車(chē)時(shí)速不斷提升，檢測手段從最初的木質(zhì)道尺升級為靈活便捷的軌檢小車(chē)和高速檢測列車(chē)，同時(shí)檢測精度也成百倍提高。在上海，李峰、劉訓飛、郎海鵬三代師徒線(xiàn)路工見(jiàn)證了鐵路線(xiàn)路檢修標準提升和技術(shù)升級。

　　新華社記者 方喆 攝

国产精品香港三级国产AV|JULIA手机在线观看精品|亚洲乱色熟女一区二区三区麻豆|欧美牲交a欧美牲交久久精品|亚洲成A∧人片在线播放无码
<button id="ykzvi"></button>
<button id="ykzvi"><xmp id="ykzvi"><xmp id="ykzvi">
<ins id="ykzvi"><form id="ykzvi"><xmp id="ykzvi"><ins id="ykzvi"><form id="ykzvi"></form></ins><xmp id="ykzvi"><ins id="ykzvi"></ins>
<xmp id="ykzvi">
<button id="ykzvi"><form id="ykzvi"><button id="ykzvi"></button></form></button><form id="ykzvi"><xmp id="ykzvi"><form id="ykzvi"></form><button id="ykzvi"></button><form id="ykzvi"></form>
<button id="ykzvi"></button>
<ins id="ykzvi"></ins>
<xmp id="ykzvi"><xmp id="ykzvi"><ins id="ykzvi"><form id="ykzvi"><ins id="ykzvi"></ins></form></ins><form id="ykzvi"></form><xmp id="ykzvi"><xmp id="ykzvi"><button id="ykzvi"></button><ins id="ykzvi"><button id="ykzvi"><ins id="ykzvi"></ins></button></ins><button id="ykzvi"><ins id="ykzvi"></ins></button>
<ins id="ykzvi"></ins><xmp id="ykzvi"><ins id="ykzvi"></ins><ins id="ykzvi"></ins>
<button id="ykzvi"><button id="ykzvi"><ins id="ykzvi"></ins></button></button><button id="ykzvi"><button id="ykzvi"><button id="ykzvi"></button></button></button><xmp id="ykzvi"><ins id="ykzvi"><button id="ykzvi"></button></ins>
<xmp id="ykzvi">
<ins id="ykzvi"><button id="ykzvi"></button></ins><ins id="ykzvi"><ins id="ykzvi"></ins></ins><button id="ykzvi"><form id="ykzvi"></form></button><button id="ykzvi"><button id="ykzvi"></button></button><form id="ykzvi"><ins id="ykzvi"></ins></form><ins id="ykzvi"></ins>
<ins id="ykzvi"><button id="ykzvi"><form id="ykzvi"></form></button></ins><ins id="ykzvi"><form id="ykzvi"></form></ins>
<ins id="ykzvi"><form id="ykzvi"><button id="ykzvi"></button></form></ins>
<ins id="ykzvi"><form id="ykzvi"></form></ins>
<xmp id="ykzvi"><form id="ykzvi"></form><button id="ykzvi"></button>
[責任編輯：李曉蕾]

新聞評論