对可溶性磷酸盐、总磷产污负荷进行MQ回归，提炼回归方程。
Regress the load of dissolved phosphate and total phosphor by MQ equation.
研究了采用可溶性钙盐对以乳酸为络合剂，次磷酸盐为还原剂的失效化学镀镍溶液的再生。
The method using soluble calcium salt for regeneration of waste electroless nickel plating liquor, in which the lactic acid used as complexing agent and hypophosphite used as redcing agent is studied.
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