... man-handling of materials ==> 人工转运 man-hole opening ==> 人孔口 man-hour ==> 人时,工时,一人一小时的工作量=>工数 ...
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contact hole opening 开接触孔
hole opening device 扩眼设备
oil hole opening 油孔开口
man-hole opening 人孔口
Plum Blossom equidistance hole opening 梅花等距开孔
casing hole opening 套管开窗
With the pumpkin resting on the table, hole uppermost, I bent over and pressed my head against the opening.
南瓜放在桌子上，洞口在最上面，我弯下腰，把头压在洞口。
Underwater love: the two beluga whales swim with a diver near the opening of the dive hole.
水下之爱：两头白鲸在潜水洞开口附近和潜水员一起游泳。
It felt like I had an opening, a hole and then the closing.
那感觉就像一个开口，一个洞，然后是关闭。
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