铅工业

It s also used as a component for the fabrication fiber, and an creodont for the removal of exposed lead circurt board.

在金属加业中用来制作所需的熔剂、金属的表面处理、制铝钛硼合金，作砂轮盘的成分，以此降低操作温度，还用作棉花人造纤维的阻燃剂及印刷路中清除露出铅的侵蚀液。

Nonbiodegradable pollutants, such as certain chlorinated hydrocarbon pesticides (e.g.DDT) and heavy metals, such as lead, copper, and zinc in some industrial effluents, accumulate in the environment.

生物不可降解的污染，如氯代烃类杀虫剂（如DDT）业废水中的重金属，如铅、铜锌，在环境中积累。

There are a lot of tellurium minerals in them, such as petzite, calaverite, hessite, altaite, tellurbismuth, rucklidgeite and sylvan.The grade of some section of ore body is up to industrial grade.

金矿床中含有大量的碲化物,如碲金银矿、碲金矿、碲银矿、碲铅矿、碲铋矿、碲铅铋矿自然碲,部分矿段的品位达到碲的业品位要求。