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>> 提高阀门的耐磨性有哪些方法?
?
1.
HmHa
Hm/Ha>0.8Hm/Ha=1.25-1.3HmHa1.25-1.3Hm=(1.25-1.3)Ha
2.
3;
4(1000m/s)
,
?
1.
HmHa
Hm/Ha>0.8Hm/Ha=1.25-1.3HmHa1.25-1.3Hm=(1.25-1.3)Ha
2.
3;
4(1000m/s)
,
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