Drop in sterilized medicine regularly. Keep the blower in constant working. Check the quality of the sample of the constant to compare with the standards.
定期投药。保持鼓风机连续工作。检查取样的质量并与标准的相比较。
During each acid pickling operation a sample piece of same material shall be kept inside the inhibited acid solution in the tank to check the quality of cleaning.
在每次酸浸操作中，应该将同种材质的试样放置在加入缓蚀剂的溶液内检查清洁程度。
During each acid pickling operation a sample piece of same material shall be kept inside the inhibited acid solution in the tank to check the quality of cleaning.
在每次酸浸操作中，应该将同种材质的试样放置在加入缓蚀剂的溶液内检查清洁程度。
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