a big-pile up involving six cars  数车相撞

automatic pile-up welding  自动堆焊

belled up pile  下端被扩口的灌桩

Carbides Pile-up  碳化物堆积

charge pile-up effect  电子导电型材

classify and pile up  分类堆放

compound pile up effect  复合叠加效应

contact spring pile-up  触点簧片组件

contact spring pile-up (contact spring assembly)  纺织腺; 触点簧片组件

discrete pile-up  离散堆积

dislocation pile up  位错堆积

dislocation pile--up model  位错塞积模型

divide section pile up  分段堆料

gamma pile-up  伽马积累

leading edge pile-up rejection  前缘堆积排除

numbers pile up  数字叠加

peak pile up  尖峰堆积

Peak pile-up  峰堆积

percussion arc pile-up welding  振动电弧堆焊