问题描述:
[单选]
104紧急阀杆上缩孔Ⅲ、Ⅳ、Ⅴ的原型分别孔径为()。
A.1.6mm,1.15mm,0.5mm
B.1.5mm,1.15mm,0.5mm
C.1.6mm,1.0mm,0.5mm
D.1.5mm,1.0mm,0.5mm
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答案解析:无
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