... 世代交替的 heterogamous 轮流,交替的 by changings 交替的。 alternate ...
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changing by changings 轮流的
alternate changing by changings 轮流的
The changings of decarburization thickness were investigated by metallographic method. Then verified the accuracy of experimental datas in theory, and analyzed the protective mechanism of coating.
应用金相法考察了试样脱碳层深度的变化，从理论上初步验证了实验数据的准确性，并合理地分析了涂料的保护机理。
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