... surfacing lathe 落地车床 surfacing machine 端面切削机床 surfactant 外貌活性剂 ...
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strip surfacing machine 带极堆焊机
Micro-Surfacing machine 微表摊铺车
surfacing and boring machine 车面镗孔两用机床
surfacing welding machine 堆焊机
·2,447,543篇论文数据，部分数据来源于NoteExpress
The "pilot" controls the aircraft at a safe distance, directing the machine to hover over the water where whales are surfacing.
BBC: How do you breathalyse a whale?
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