题目内容

A0.002
B0.005
C0.01
D0.1

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A1.0~1.2m
B1.2~1.6m
C1.6~1.8m
D1.8~2.4m

A热空气幕
B等温空气幕
C上送式空气幕
D低温空气幕

A0.15m
B0.25m
C0.3m
D0.5m

A0.3m
B0.7m
C1.0m
D1.5m

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