表面压缩 meaning in English

surface compression

Aerospace industry . shot peening for inducement of compressive surface stresses for metallic parts
航空航天工业.金属零件诱发表面压缩应力的喷丸处理
Piston rings up to 200 mm diameter for reciprocating internal combustion engines - designs , dimensions and designations for single piece rings - keystone and half keystone compression rings - specification for keystone rings
往复式内燃机直径小于等于200mm的活塞环.第7部分:单片环的设计尺寸和命名.第3节:楔表面和半楔表面压缩环.第1小节:楔表面环的规范