“压紧”造句

木头很容易压紧。
The compres-sion of the wood is easily achieved.

他将棉花压紧打成棉花包.
He compressed cotton into bales.

当大气压力增加时, 膜盒压紧而缩短.
When pressure is increased, the ancroid is squeezed , so It'shortens.

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