boring shaft sinking

常見(jiàn)例句

The concept of depth limit for the method applied to sinking of shaft lining by means of floatation in shaft boring that was widely utilized in mine construction was put forward.
提出了國(guó)內(nèi)廣泛採(cǎi)用的懸浮下沉井壁鑽井施工法有其深度極限的觀點(diǎn)。
The concept of depth limit for the method applied to sinking of shaft lining by means of floatation in shaft boring that is widely utilized in mine construction in China was put forward.
提出了國(guó)內(nèi)廣泛採(cǎi)用的懸浮下沉井壁鑽井施工法有其深度極限的觀點(diǎn)。分析了泥漿中的井壁筒在加入配重水（非滿(mǎn)水）後井壁底接觸巖石時(shí)的受力狀態(tài)；
The concept of depth limit for the method applied to sinking of shaft lining by means of floatation in shaft boring that is widely utilized in mine construction in China was put forward.
提出了國(guó)內(nèi)廣泛採(cǎi)用的懸浮下沉井壁鑽井施工法有其深度極限的觀點(diǎn)。