拣出 meaning in Chinese

culling

Glass is separated by hand at the dump and ferrous metal removed by magnet .
玻璃在堆放场用手拣出，黑色金属用磁铁分出。
When a race of plants is once pretty well established, the seed-raisers do not pick out the best plants .
当一个植物品种已经育成以后，育种的人，并不是在子苗生长的时候，把最优秀的植物拣出。
I waste an average of ten minutes a day just on sorting through junk mail
我每天仅仅拣出垃圾邮件就要浪费十分钟。
They are picking over the cinders in the rubbish heap for unburned pieces of coal
他们正在检查垃圾堆中的煤渣，拣出未烧掉的煤块。
Something picked out from others , especially something rejected because of inferior quality
杂质从其它东西中拣出的物品，尤指因为内在质量低劣而被抛弃的东西

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