N any salt or ester of pyrophosphoric acid 焦磷酸盐(或酯)
Chemical compounds, including pyrophosphates and zinc citrate, are often added and have been proven effective.
一些化合物，包括焦磷酸和柠檬酸锌，这些常常被使用，而且被证明是有效的。
Counter-flow spray technique for the treatment of the rinsing water containing pyrophosphates in Cu- Sn-Ni alloy plating is described.
电镀焦磷酸盐铜锡镍废水由“常流水”清洗方式改为反喷淋清洗方式。
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