或许是因为他们不能穿的氨纶。

Perhaps because they cannot wear the spandex.

youdao

如果可能我们也想参观中国的氨纶生产厂。

If possible we may also visit spandex Mills in China.

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要纺制高质量的氨纶包芯纱其操作方法也极为重要。

The operation method is also important to spinning corn-spun yarn of high quality polyurethane.

youdao

要纺制高质量的氨纶包芯纱其操作方法也极为重要。

The operation method is also important to spinning corn-spun yarn of high quality polyurethane.

youdao