引气 meaning in Chinese

air bleed
bleeding

Standard specification for air - entraining admixtures for concrete
混凝土引气剂的标准规范
Research on the freeze thaw durability of pfa concrete
引气粉煤灰混凝土抗冻融耐久性的研究
Standard test method for air - entraining admixtures for concrete
混凝土引气剂的标准试验方法
Experimental study of the dynamic responses of the ecs ' s bleed system
飞机环控系统引气分系统动态特性试验研究
Butterfly shape petal fracture analysis of aup leading gas valve on boeing 777 plane
引气活门蝶形瓣片断裂分析

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