The stainless tubing is less likely to kink than copper, but it is harder to solder without an acid treatment.
不锈钢管比铜管不易纠结，但不经酸性处理焊接较困难。
The stainless tubing is less likely to kink than copper but it is harder to solder without an acid treatment.
不锈钢管比铜管不易纠结，但不经酸性处理焊接较困难。
A new stripper for removing the solder from the surface of waste printed circuit boards was developed on the basis of a nitric acid - sulfonic acid type tin stripper.
以硝酸-磺酸型退锡剂为基础配方，研制了一种脱除废旧电路板表面残留焊锡的剥离液。
Chemical removal approach is utilized and the oxide thickness is controlled by controlling the oxygen pressure and temperature during solder drying after organic acid removal.
采用化学腐蚀法，通过控制有机酸腐蚀后焊料烘干的氧分压和温度控制焊料表面氧化层厚度。
Chemical removal approach is utilized and the oxide thickness is controlled by controlling the oxygen pressure and temperature during solder drying after organic acid removal.
采用化学腐蚀法，通过控制有机酸腐蚀后焊料烘干的氧分压和温度控制焊料表面氧化层厚度。
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