Traditionally, any exposed copper was plated with solder by hot air solder levelling (HASL).

传统上，任何接触焊铜镀锡热空气即(HASL)。

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This article describes the process of producing oxygen-free copper and control of its technical parameters. Solutions are given out for problems exposed in the process of prodution.

本文介绍了无氧铜生产工艺，探讨了其技术条件控制，对生产中暴露出来的问题提出了解决办法。

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There are some copper, zinc in muscle and bone. The degree of accumulation increase by the growth of exposed time.

积累程度随暴露时间的增加而增加，一定时间后可达到动态平衡，随后会有少量铜、锌转移或排出。

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In the lower-level dining room, the right balance of tile, exposed brick, and copper pots lends a rustic minimalism.

NEWYORKER: Il Buco Alimentari e Vineria