Most of the construction waste for solid wastes, general is in construction process or old buildings maintenance, dismantling produces in the process.
建筑垃圾大多为固体废弃物，一般是在建设过程中或旧建筑物维修、拆除过程中产生的。
The general operating situation including the source, its treatment and results of wastes in domestic nickel smelters are reviewed.
介绍了我国镍冶炼厂的生产简况，三废来源，三废治理方法及其效果。
We do a good job in recycling of wastes of iron and steel, copper and lead but we have much to do in recovery of wastes of aluminum and zinc and the like. In general, gre…
我国对废旧钢铁、铜、铅的回收利用相对较好，废旧铝、锌及其它金属的回收利用水平较低。
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