The paper introduces the innovations made upon drying section of sack paper machine and presents the basic running data after the innovation and the effects of the innovation.

分析了可调喷射式热泵的特点，提出一种采用可调喷射式热泵改造纸机干燥部供热系统的方案。

youdao

I looked longingly at the paper sack of gin.

我渴望看一眼杜松子酒纸袋。

youdao

The diamond was finally donated, via US mail in a brown paper sack, to the Smithsonian.

这块钻石最终被放进一个棕色的纸袋中邮寄捐赠给史密森学会。

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Not bad for a song written on the back of a paper sack.

FORBES: Elvis, schmelvis. For rockabilly fans, Carl Perkins remains the go-to guy.

They'd be back in the afternoon, each with a catch to sell, with nets to fold, with maybe a secret paper sack (illegal striped bass, to carry home for supper).

CNN: Excerpt: 'Joe DiMaggio: The Hero's Life'

Stanley Turrentine carrying his axe in a paper sack.

NEWYORKER: Indianapolis (Highway 74)