我们发现了一个金属环和一块青金石。
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。
Cut holes in the middle of both books, string them by a metal ring, neither of them can be read.
设想一个空酒瓶，瓶口被软木塞以正常的方式塞住，瓶子里一个金属环悬挂在一根细绳上。
Picture an empty wine bottle with a cork secured at the top in the usual way. Inside the bottle a metal ring hangs suspended by a string.
可以用来把宠物狗固定在后座上。从而提高乘客的安全性。牵狗的带子也可以固定在一个金属环上，有三中尺寸供应。
Suitable for securing dogs on the rear bench seat and thereby enhances passenger protection. A lead can also be secured to a metal ring. Available in three sizes.
该小挂件用一个金属环和小圆柱附在一根绳索上，并且包括在该套件中作为一个儿童可以附在玩具项链、手链或钥匙链上的分离的附加物。
The charm is attached to a cord using a metal ring and cylinder and included with the sets as a separate accessory that children can attach to the toy necklace, bracelet or key chain.
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。
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。
Electricity, meanwhile, is delivered via a conductive brush that sweeps around a metal ring in the stationary base.
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