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to phrases
trial test
med.
预〔初步,探索性〕试验
oil
初步试验
railw.
试运转
space
预[初步]试验
;
探索性试验
tech.
预试验
;
预试
;
试探性试验
;
初步实验
trial test
:
37 phrases
in 9 subjects
Animal husbandry
1
Automobiles
1
Aviation
1
Business
3
Communications
1
Engineering geology
1
Polygraphy
3
Shipbuilding
17
Technology
9
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