Tap it lightly on your desk and the carbon granules will line up and it will work much better.
将听筒在桌子上轻轻叩击，碳粒将松散开来，工作得更好一些。
Using weight-loss method, the corrosion inhibition on carbon steel of polyepoxysuccinic acid and polyepoxysuccinic acid combined with PBTCA and Zn2+ in Shanghai tap water have been studied.
用失重法研究了在上海自来水中聚环氧琥珀酸对碳钢的缓蚀性能以及PESA与PBTCA、锌盐的缓蚀协同效应。
Most dispensing systems rely on carbon dioxide gas pumped down into the keg to push beer up to a tap.
一般的分酒系统大多是在桶中打入二氧化碳，将啤酒推至龙头处。
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