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。

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

对家蚕有中等程的感能力，经卵传较低.

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

一次中等程的降雨条件下,钙在壤垂直方向上发生淋溶迁移转化。

Apply by coal of ecumenic serous thickness.

中等浆的煤种。

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天鹰发生了中等程的空中碰撞。