castoff

Miss Diana gave away all her castoffs to the little girls in the orphan asylum.

戴安把她所有穿旧不用的衣服送给了孤儿院的女孩。

then simulates to eluviate the mixtures of adsorption fly ash and gangue and gains the best proportion of the two kinds of castoff when they fill up mine subsidence area;

并对吸附灰和煤矸石的混合物进行淋溶模拟试，得出吸附粉煤灰和煤矸石充填采煤塌陷区的最佳灰石比；

The factory has dumpaged its castoff into that river all along.As result,the river has been polluted.

该工厂一直将其废弃物倾倒在条河里。，条河被污染了。