强酸性阳离子离子交换树脂
strong acid positive ion exchange resin
强奇异交换交换子代数
strongly singular maximal abelian self-adjoint sub
逆流交换器
countercurrent heat exchanger
交流换流器
alternating-current converter
交流交换系统
countercurrent exchange system
交流离子渗氮
alternate current ion nitriding
330弱碱性环氧系阴离子交换树脂
330 weak alkali epoxy anion exchange resin