更新时间：2026-07-07 23:45:52
plumb bob
plumb bob是什么意思？
铅锤
- 单词
- plumb bob
铅锤
Noun:- the metal bob of a plumb line
- plumbous bichromate
- Plumbeous Seedeater
- plumbaginous schist
- plumbe
- plumbous subacetate
- plumbous rhodanate
- plumb the depths of
- Plumbago esquirolii
- plumb in the middle
- plumb
- plumbous antimonate
- plumbago refractory
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