真皮中新生胶原纤维细，含毛细血管。

Fibers in the new dermis were thin.

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我们从马来西亚进口生胶。

We imported raw rubber from Malaysia.

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考察了在胶种、炭黑、软化剂、再生胶等不同品种和用量的胶料中的性能。

It's property in rubber type, carbon black, softener, reclaim etc. are discussed.

youdao

考察了在胶种、炭黑、软化剂、再生胶等不同品种和用量的胶料中的性能。

It's property in rubber type, carbon black, softener, reclaim etc. are discussed.

youdao