metal ring 金属环 ; 金属环八角垫
Metal ring fastener 五金环扣
brass metal ring 黄铜合金环 ; 黄铜环
bronze metal ring 青铜合金套圈
metal ring binding 何谓金属圈装
Intalox Metal Ring Packing 金属鞍环填料
O-shape hollow metal ring 金属空心O形圈
ring joint metal gasket 环形连接金属垫片 ; 环形连接金属介子垫片
If you rap it with your knuckle, you hear the thwack of gypsum rather than the ring of cold metal.
如果用指关节击之，你能听见石膏的闷响，而非冷冰冰的金属发出的鸣响。
Electricity, meanwhile, is delivered via a conductive brush that sweeps around a metal ring in the stationary base.
同时，固定地基上有一个(供电的)金属环，房子通过绕着此环旋转的导电刷来获得电能。
Cut holes in the middle of both books, string them by a metal ring, neither of them can be read.
在两本书中间都切一个口，用一个金属环把它们串在一起，哪本都翻不开。
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