Therefore, in this paper kelly bushing torque gauge that consists of launcher.
通过改造方补心, 研制了方补心扭矩仪,可直接测量钻柱扭矩.
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Therefore, in this paper kelly bushing torque gauge that consists of launcher.
通过改造方补心, 研制了方补心扭矩仪,可直接测量钻柱扭矩.
互联网摘选
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