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停留时间分布试验
 停留时间分布试验
met. RTD experiment
| 研究
 研究
gen. investigate; investigation
environ. research
hydroel.st. study; search
met. survey; testing
space research, test, development and evaluation
tech. research

to phrases
停留时间分布试验
met. RTD experiment
停留时间分布试验
: 3 phrases in 1 subject
Metallurgy3