About Ding Guang
About 中国鉄路沈陽局集団有限公司建設部,遼寧 沈陽,110001
About Yang Wenlong
About 中鉄七局集団第二工程有限公司,遼寧 沈陽,110000
About Zhen Shangwei
About 中鉄七局集団第二工程有限公司,遼寧 沈陽,110000
About Shanxi Jianzhu
About numerical analysis
About rock
About full face cutting
About railway tunnel
About software
About 有限要素
About Tunneling work
About 鉄道トンネル
About 拡大掘削
About 数値解析