例如：在去除水锈时，可用含有次硫酸钠的溶液代替去垢剂冲洗步骤。
For example, when removing rouge, solutions containing sodium hydrosulfite can be substituted for the detergent wash step of the procedure.
第一次和第二次的全国硫酸遵守协议，已在2007年罗地亚公司和杜邦公司宣称。
The first and second nationwide sulfuric acid compliance agreements were announced in 2007 with Rhodia Inc. and Dupont.
第二个氧化峰是硫酸铋膜底层铋的二次氧化，其产物为非晶态的铋的氧化物或水合物。
The second oxidation peak is the second oxidation of bismuth under the bismuth sulphate film. The oxidation product is non-crystalline.
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