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step sector
step sector
chem.
阶梯光阑
|
method
method
gen.
法
;
标准
;
水平
environ.
方法
hydroel.st. од.
方法
mech.
电火花法
to phrases
step sector
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chem.
阶梯光阑
tech.
阶梯遮光板
step sector
:
3 phrases
in 2 subjects
Chemistry
2
Technology
1
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