英语语法分析

bumpings

n. [分化]暴沸；[机]锤击；造成凹凸

v. 碰撞；使撞击（bump 的 ing 形式）；颠簸地行驶

例句

Electroplating processes of Au, Au-Sn, Sn-Pb, Sn-Ag and chemical nickel-plated bumpings are described in particular. And finally, electroplating equipments for bumping formation are introduced.

着重介绍了电镀金、金锡、锡铅、锡银和化学镀镍凸点的工艺过程，最后简单介绍了制备凸点的电镀设备。