covering fire

n. [军]掩护火力

例句与用法：

Dense fog is covering roads in the north and visibility is very poor.

浓雾笼罩了北部的公路，能见度很低。

The covering of forestry in our town is 60 percent.

我们镇的森林覆盖率是百分之六十。

The piece of oilcloth is used as a covering for a table.

这块油布是用来铺桌子的。

A cocoon is a kind of silk covering made by an insect.

蚕茧是由昆虫制造的一种由丝组成的外包层。

A covering for a wheel, usually made of rubber reinforced with cords of nylon, fiberglass, or other material and filled with compressed air.

轮胎车轮的覆盖物，通常由用尼龙绳、玻璃纤维或其它材料加固的橡胶制成，并注入了压缩的空气

A covering for the shoulders, as of fur, with long ends that hang in front.

披肩由皮毛等制成的覆盖肩部的覆盖物，长长的两端下垂在前面

A covering or cover.

覆盖物或盖子

A covering resembling a cloak or mantle.

斗篷状覆盖物一种类似长袍或斗蓬的遮盖物