... Signal bell 信号铃 ; 信号钟 bell bronze 钟青铜 ; 锺青铜 ; 钟铜 ; 钟用青铜 dumb bell 笨蛋 ; 团山地形 ...
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用一个鳄鱼嘴导线连接土豆A的铜电极至钟的正（+）极
Use an alligator-clip wire to connect the copper electrode of potato A to the plus (+) connection in the clock.
这次大修采用了PW无料钟炉顶、铜冷却壁和INBA炉渣处理等先进技术。
Some advanced techniques are adopted, such as PW type bell-less top, copper cooling stave and INBA slag granulation process.
产品加入铜粉后充分搅拌20分钟，应保证油漆黏度均匀，静置30分钟消泡。
Stir completely about 20 minutes after add copper powder to the product, ensure the paint's viscosity uniformity, leave it for 30 minutes to let the bubbles disappear.
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