Multivariate regression analysis of rheological behavior of dry-jet wet-spinning PAN/ DMSO solution

The effects of the jet stretch ratio and draw ratios of three-stage drawing including air drawing, DMF bath drawing, hot water and boiling water drawing and dry-hot drawing on the properties of PAN fiber were studied in dry-jet wet spinning.

研究了干-喷湿纺聚丙烯腈（PAN）初生纤维的喷丝头拉伸比和三级拉伸（空气拉伸、DMF浴拉伸、热水和沸水拉伸、干热拉伸）工艺中各拉伸比对纤维性能的影响。

The PBO polymer solution was synthesized by means of polycondensation of 4,6-diaminoresorcinol ( DAR) and terephthalic acid ( TPA). At 180~ 200 ℃, the polymer starts to form liquid crystal state, and the fiber can be synthesized by using the dry-jet wet-spinning method.

采用4,6-二氨基间苯二酚（DAR）与对苯二甲酸（TPA）缩聚的方法制备PBO聚合物溶液，在180~200℃使聚合物形成液晶态，利用干喷湿纺制法制备纤维。

Spray it a little wet may help ironing out the wrinkles.

熨烫时，可适量喷湿，易于烫平。

Precursors for high performance carbon fibers and Dry-Jet wet spinning

高性能碳纤维原丝与干喷湿纺

Dry-jet wet-spinning process of PAN precursor for carbon fibers

聚丙烯腈原丝及其干喷湿纺

Dry-jet wet-spinning precursor fibers have a smooth surface.

干喷湿纺原丝及碳纤维表面光滑无沟槽。

Compared with wet-spinning, dry-jet wet spinning is a relatively better spinning technology for producing carbon fibers with high performance.

与湿纺的方法相比，干喷湿纺是一种制备高性能碳纤维的优异的纺丝方法。

He boasts that he is one of the best shots in the country.

他自夸是该地最好的射手之一.

We were frightened at the terrible sight.

看到这可怕的景象,我们被吓呆了.

She stood aghast at the snake.

她被蛇吓呆了.

He stood aghast at the terrible sight.

他被眼前的可怕景象吓呆了.

Sinopec, China's largest oil refiner, is also a major service-station operator.

而中国最大的炼油企业中国石化同时也经营著大量加油站.

ExxonMobil is the world's leading oil and gas company.

埃克森美孚是世界领先的石油和石化公司,有着120多年的历史.

What distance can you throw the shot?

你铅球掷多远?

They tied for the third place in the shoot put.

他们在推铅球项目并列第三.

Dear Shirley must have put a lead ball in it!

亲爱的雪莉大概放了个铅球在里面.

On the season, Landry's shooting average final platoon enters alliance first ten.

上赛季, 兰德里的投篮命中率最终排进联盟前十位.

When have you seen me try to score and take shots?

他问道:“你什么时候看见我在拼命地投篮得分? ”

Our objective is to penetrate the defense and find high-quality shots.

我们的目的是突破对方的防守并寻求高质量的投篮.

What he said warmed my heart.

他的一席话温暖了我的心.