总铅的时间了该项目。
铅元素含量总狭义遗传率最低。
The contents of Pb had the lowest total heritability in narrow sense.
用氯化法处理罗定铅阳极泥能较好地回收金属银，银的总回收率大于99%，其它各种有价金属亦得到有效回收。
The silver can be recovered from lead anode slime from Luoding by chlorination. Total recovery rate of silver is more than 99%, and all valuable metals can be recovered effectively.
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