All carbon arc gouged surface areas shall be ground to clean bright metal prior to subsequent welding.

开始后续焊接前，所有碳弧气刨面区域应接地至洁净明亮的金属。

youdao

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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Use pedal to move a gauge tap , handle bright metal chopping the head the bright metal being in progress copying, operation is convenient and rapid , stability , safety are reliable.

用脚踏动控制开关，操作铣头进行仿形铣削，操作便捷、稳定、安全可靠。

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The difference between the bright burning metal and the black factory walls was too extreme for her camera.

VOA: special.2009.05.10

You could see into the other empty classrooms through the matrix of windows that formed walls around them, supported by bright orange metal framing.

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The port layout seems reasonable, the LED-backlit screen bright and not-too-terribly-glossy, and the brushed metal finish on the back is surely a nice touch.

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You can sometimes see bright flashes - that's actually hot enough to vaporise very small amounts of metal.

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