短語詞組

短語

• rotary y percussion drilling 旋轉(zhuǎn)沖喚鉆進
• percussion rotary drilling technology 沖擊旋轉(zhuǎn)鉆井技術(shù)
• percussion rotary drilling 沖擊回轉(zhuǎn)鉆進
• percussion -rotary drilling technique 沖擊旋轉(zhuǎn)鉆進技術(shù)
• hydraulic percussion and rotary drilling 液動沖擊回轉(zhuǎn)鉆進
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