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。

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Use sand cloth or steel wire brush to clean both tube and cup to a bright metal. Steel wool is not recommended.

采用砂布或钢丝刷清除管道和端口，使其显露出光洁的金属色。不建议采用钢丝棉。

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Big diameter pipe can be composed of several round steel brush together, at both ends with wire tightly, within the lumen pull brush back and forth, until the metal color, reoccupy cotton brush clean.

大管径管子可由几个圆钢刷组装在一起，两端用铁丝扎紧，在管腔内来回拉刷，直至露出金属本色，再用棉纱拉刷干净。

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Electricity, meanwhile, is delivered via a conductive brush that sweeps around a metal ring in the stationary base.

ECONOMIST: Monitor

The ex-Soviet producer of beryllium, a plant called Ulba, was trying to export that metal to the US. The sole US producer (in any volume at least) was Brush Wellman.

FORBES: Three responses to Noahpinion