... Coriolis-type mass flowmeter 互补式质量流量计 cork float 软木浮子 cork screwed wellbore profile 螺旋状井筒剖面 ...
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rope with cork float 浮线
sliding cork float 活动软木浮子
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Whenever the audio tone of the detector sounded, a diver would mark the spot with a white cork float and return later to excavate it.
一旦探测器发出音频信号，潜水员就用软木浮标作上标记，待稍后进行挖掘。
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