The influence of extracted and commercial humic acid on trihalomethane formation was studied, and the characteristics of humid acid were analyzed.
以提取腐殖酸和商品腐殖酸为对象，研究了不同腐殖酸对加氯消毒后三卤甲烷生成量的影响，并对腐殖酸特性进行了分析。
The use of acid-base and humid environment on the corrosion of metal plating layer to test the corrosion resistance.
利用酸碱和湿热环境对金属的腐蚀性来测试电镀层的抗腐蚀能力。
The stupid invalid has rigidly forbidden the kid's bidding for the producing of solid acid in a humid, but splendid field with a rapid lid.
愚蠢的病人严厉地用一个快盖子禁止了小孩对在一个潮湿而华丽的地带生产固体酸的投标。
The corrosion resistance of samples after passivation is studied in the experiment by humid-air accelerated corrosion test, nitric acid titrating test and the brine dipping test.
将黄铜片用上述三种溶液钝化处理后，通过湿热加速试验、硝酸点滴试验、盐水浸泡试验及电化学测试对耐腐蚀性进行了研究。
The present invention discloses an acid, alkalis and salt resistant moisture-proof electric heating board applied in cement and humid climates and method for producing the same.
本发明公开一种应用于水泥中及潮湿气候环境中耐酸、碱、盐的防潮取暖电热板及其制备方法。
The present invention discloses an acid, alkalis and salt resistant moisture-proof electric heating board applied in cement and humid climates and method for producing the same.
本发明公开一种应用于水泥中及潮湿气候环境中耐酸、碱、盐的防潮取暖电热板及其制备方法。
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