shell

We ran for cover as shells dropped all around us..周围炮弹四处飞落，我们奔跑着寻找地方躲避。

an exploding mortar shell.一枚爆炸的迫击炮弹

cylindrical shell,柱状壳体；筒壳

shell structure,壳结构

in the shell,尚未成熟，在酝酿之中

outer shell,外壳层，外壳

spherical shell,球壳

shell element,壳元素，壳单元；壳元；壳体元素

shell side,壳程

shell thickness,凝固壳厚度；管炮厚度；壳壁厚度

egg shell,[医]卵壳

metal shell,金属外壳

coconut shell,椰子壳

shell out,[口]付款；还账；为…提供

steel shell,钢壳；钢制炉体

walnut shell,胡桃壳

conical shell,锥壳；圆锥壳；锥形薄壳

shell fabric,面料；面布

shell plate,[机]锅筒板；壳板

soft shell,软壳

tank shell,罐板（壳）；油罐壳体

tortoise shell,龟甲；一种类似龟甲的蝴蝶