介绍了以无缝纯铜管为镶嵌体，用镶嵌法在铸铜件上铸造细孔的方法。
A casting technique for fine holes in Cu alloy casting by pure Cu tubes as insert bodies is introduced.
采用电化学极化和失重法研究了纯铜管、304不锈钢管于开口、低氧密闭两种状态下在不同浓度氨溶液中的腐蚀性能。
The corrosion performance of tubes of copper and 304 stainless steel in ammonia solutions with different ammonia concentration are studied by electrochemical polarization and weight-loss method.
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