rotary percussion drilling

短语词组

短語

• rotary y percussion drilling 鏇轉沖喚鑽進
• percussion rotary drilling technology 沖擊鏇轉鑽井技術
• percussion rotary drilling 沖擊廻轉鑽進
• percussion -rotary drilling technique 沖擊鏇轉鑽進技術
• hydraulic percussion and rotary drilling 液動沖擊廻轉鑽進
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