primary sedimentation tank 初次沉淀池 ; 初沉池

activated primary tank 一次活化槽

primary tank liquid distributor 一级槽式液体分布器

primary relief tank 一回路卸压凝汽箱

primary settling tank 初沉池 ; 一次沉淀池 ; 初次沉淀池

primary oil removal tank 一次除油罐

primary shield water tank 一次屏蔽水箱

primary fuel tank module 主油箱模块 ; 主要燃料箱模块

Primary electric desalting tank 一级电脱盐罐