scums

There was green scum over the pond.

池塘水面有绿色的藻。

Drug dealers are the scum of the earth.

毒品贩子是社会的滓。

Some interview content very expatiatory, how to take its flower, go its scum?

有些采访内容十分冗长，如何取其精华，去其糟呢？

There is a ring of scum in the washbasin.

这个脸盆内有一圈污垢。

These so-called football supporters are scum.

这些所谓的球迷是社会滓。

Simulates the multi-hearth work condition,promotes to uses the zinc volatility kiln processing zinc scum dechlorinate,by this increase income earning of an enterprise.

模拟多膛炉作业条件,推广至采用锌挥发窑处理锌氯,以此增加企业收益。