常見例句雙語例句Hydro-hammers provide high penetration rate in hard rocks, less borehole deviation, and high core recovery in exploration drilling. The technology has been established and its uses are being extended.液動錘在鉆探施工中具有能提高硬巖鉆進速度、減小孔斜和提高巖心采取率等優(yōu)點，技術成熟，應用領域正在拓寬。d.wanfangdata.com.cn 返回 core-drilling exploration