Rigs form a dense ring around the tribe’s borders; only recently has drilling begun within.
钻井机密密麻麻地在部落边境上围成一个圈，直到最近才开钻。
Rigs form a dense ring around the tribe's borders; only recently has drilling begun within.
钻井机密密麻麻地在部落边境上围成一个圈，直到最近才开钻。
With cars, milling, boring, drilling four automation function, can be turning sphere, cylinder, cone, thread, tapping, end face, inner and outer ring groove, etc.
具有车、铣、镗、钻四大自动化功能，可车削球面、柱面、锥面、螺纹、攻丝、端面、内外环槽等。
Mechanical method is a category of measuring residual stress. In the category, hole-drilling method, ring-core method and dissecting method are commonly used.
机械法是测残余应力的一类方法，其中常用的有盲孔法、环芯法和剖分法。
Mechanical method is a category of measuring residual stress. In the category, hole-drilling method, ring-core method and dissecting method are commonly used.
机械法是测残余应力的一类方法，其中常用的有盲孔法、环芯法和剖分法。
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