三效 meaning in Chinese

triple effect

Preparation method of pd ce0 . 5zr0 . 5o2 three - way catalysts
2三效催化剂负载方法
Three - way catalysts matching technology experiment
三效催化剂匹配技术试验
Application of catalytic converter to small spark - ignition engines
低贵金属含量三效催化剂的研制
Improvement of photocatalytic activity of ho - doped tio2 nanocrystallites
位复合掺杂与三效催化活性研究
Property investigation of a kind of three - way catalyst containing rare earth metal
一种富稀土型三效催化剂的性能考察

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