... bottom of foundation 基础底面 bottom of hole 井底; 井底; 钻孔底 bottom of sedimentary 沉积层底部 ...
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The main hoist winch and a system of elevators lift 1,250 tons of pipes and machinery through the 72 inches wide hole at the bottom of the boat.
主起吊绞车和升降机系统可通过船底72英尺宽的洞,提升1,250吨重的管道和机械。
One of the first water clocks was a basin with a small hole near the bottom through which the water dripped out.
最早的水钟之一是一个在底部附近有小洞的水盆,水从这个洞里滴出来。
In the image, one coronal hole appears near the top center of the sun while another one — a polar coronal hole — is visible near the bottom of the view.
在这个图片里,一个日冕出现太阳中心的顶部附近,而另一个与之相对的日冕,出现在视野的底部附近。
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