rock drill

基本解釋

Rock drill-ability is the basic parameter to optimize bits, make drilling plan and reduce drilling cost.
巖石可鉆性是優(yōu)選鉆頭，制定生產(chǎn)定額以及降低鉆井成本的基礎(chǔ)。
This design draft , mainly about the technological process of YTP26 Air-leg Rock Drill, and elabora about the milling machine typical jig design.
本設(shè)計(jì)主要是對YTP26型氣腿式鑿巖機(jī)機(jī)體進(jìn)行工藝規(guī)程的擬訂，及車床與銑床典型夾具的設(shè)計(jì)進(jìn)行全面的闡述。
Our research demonstrate that the drill string vibration is forced vibration, it needs to consider the rock-drill bit-drill string-swivel as the "drill string vibration system";
研究認(rèn)為鉆柱振動(dòng)是一受迫振動(dòng)問題，需要將井底巖石-鉆頭-鉆柱-水龍頭作為一個(gè)“鉆柱振動(dòng)系統(tǒng)”來對待；
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When they get back, the space vehicle will hopefully have provided enough data to pinpoint a potential drilling area so it can drill, collect and analyze rock samples using onboard tools -- a feat never-before attempted on Mars.
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Just before halting its investigations, the nuclear-powered rover used the drill at the end of its 7-foot-long robotic arm to bore into a rock near where it landed and analyze the powder.
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