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to phrases
tracer experiment
construct.
示踪〔显迹〕实验
tech.
显迹实验
;
示踪扩散实验
;
显迹试验
;
示踪试验
wind.
示踪实验
tracer experiment
:
4 phrases
in 3 subjects
Earth sciences
1
Metallurgy
2
Technology
1
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