中等的

Apply by coal of ecumenic serous thickness.

中等难度成浆的煤种。

Aplitic varieties are the rule, with the grain size ranging from medium to pegmatitic.

长英质的变种照例具有中等至伟晶的粒度。

In a middling rainfall condition, calcium eluviate and movement in uprightness direction.

一次中等程度的降雨件,钙在土壤垂直方向上发生淋溶迁转化。

The microsporidian had a medium oral infectivity and low transovarian transmission to sillworm, Bombyx mori.

对家蚕有中等程度的感染能，传染频率较低.

During air combat training his two seater F-15 was involved in a mid air collision with an A-4 Skyhawk.

在空战训练的过程中他的双座F-15和一架A-4天鹰发生了中等程度的空中碰撞。