我已经对这些通用胶基地数，许多人问我，如何使他们。

I have made several of these generic styrofoam bases and many have asked me how I made them.

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这种胶凝材料可以满足较低强度通用硅酸盐水泥的要求。

The strength of this cementing material can meet the requirement of lower strength cement.

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考察了易与橡胶共混的改性聚氯乙烯树脂(PVCR)在通用橡胶(NR, BR和SBR)和胶管、胶带胶料中的应用情况。

The application of a modified PVC (PVCR) partly instead of NR, BR or SBR in rubber hose and belt production was investigated.

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