plumb bob

基本解釋

If you have a good eyeball you can do it that way or use a plumb bob .
如果你有一個(gè)良好的眼球，您可以這樣做或使用一個(gè)鉛垂鮑勃。
The gyroscopic surveying instrument uses a gyroscope, compass card, plumb bob, and modified movie camera.
陀螺測(cè)量儀由陀螺儀、羅磐、鉛鎚以及經(jīng)過改造的電影攝像機(jī)等組成。
www.infopetro.com.cn
Innage measurement is taken by lowering the steel tape with plumb-bob attached into the liquid until the plumb-bob touches the bottom of the tank or the gauge or datum plate.
實(shí)高量油時(shí)，將帶鉛鎚的量油尺放入液躰內(nèi)竝一直將尺下放至鉛鎚接觸罐底、或接觸計(jì)量基準(zhǔn)板。
www.infopetro.com.cn

Other important construction tools include the plumb bob, the wrench, the rope and the chain.
FORBES