He merits a grade of B on his composition.

他的作文应该得B。

The definition ,basic nature, important rule and histerieal significancy of continued fraction are introduced.

介绍了的含义、基本性质以及的重要定理和作用。

England had narrowed Wales's lead from 13 points to 4.

英格兰队把威尔士队的领先从13降到了4。

The deviation of the extrudation moisture regain obtained by the approximate equation increases with increasing of size concentration.

随着浆液质量的增加，按近似关系式求得的浆纱压回潮率的偏差率增大。

He made a modest ramark,” This should be predetermined by the female side.After all it is not objective to score myself.

他谦虚地说，这应该问女方，毕竟自己给自己打是不够客观的。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置不同锡质量的铜- 锡合金层,其工艺可替代氰化物预铜,消除氰化物污染,是实现电清洁生产措施之一。