| 释义 |
tub·bing
\ˈtəbiŋ, -bēŋ\ noun
(-s)
Etymology: tub (I) + -ing
1. : the making of tubs; also : materials for making tubs : tub stock
2. : a lining of timber or metal for a shaft (as in a mine); especially : a watertight shaft lining consisting of a series of cast-iron cylinders bolted together and used to sink through water-bearing strata |