string concatenation operator  字符串串连运算子

concomitant implication operator  伴随蕴涵算子

High-concentration and low-concentration wastewater  高、低浓度污水

minimum inhibitory concentration and minimum bactericidal concentration  最小抑菌浓度和杀菌浓度

the minimum inhibitory concentration and minimum bactericidal concentration  最小抑菌浓度和杀菌浓度

accounting-operator number identification(CAMA-ONI)operator  硅酸盐岩石; 流程再造; 集中式自动化通

Bernstein-type operator (B-type operator)  Bernstein型算子

lowering operator and raising operator  升降算符

singular integral operator and potential operator  奇异积分算子和位势积分算子

The Derived Operator of Kleene Implication Operator  Kleene蕴涵算子的导出算子

the Wigner operator and the entangled Wigner operator  魏格纳算符和纠缠魏格纳算符

[Estimated environmental concentration  环境估计浓度

~(222)Rn concentration  氡浓度; ~(222)Rn浓度

〔Cl~-〕concentration  〔CI-〕浓度; 绝对射频信道号

14 C Concentration  14C浓度

2+1 two stage concentration process  2+1两级浓缩工艺

222Rn Concentration  氡浓度

3-D stress concentration  三维应力集中

50% lethal（activity inhibition）concentration(LC50)  50%致死（活性抑制）浓度(LC50)