向下拉

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

Now, I'm gonna pull this down, it might get a little cold, okay?

现在，我会向下拉，可能有点儿冷，好吗？

Freeing this skin will allow the attached penile skin, which is hidden by the retractor, to be pulled down far enough to enter the vaginal cavity.

住在楼的四层，对面是一幢同样九层的楼，外墙涂了半层的乳茎皮可以被向下拉到足以进入阴什么。

Roll your shoulders back and down, and keep your necks long, please!

将你的肩膀向后向下拉，使得您的脖子更长！

He pulled the visor of his cap down a little.

他把帽沿向下拉了拉。

The front seat belt system incorporates belt tensionless. In the event of a head-on or tail-end collision the belt buckles are pulled downwards; the diagonal and lap belt s are instantaneously tautened.

前排安全带系统与安全带张紧装置配合使用，在正面碰撞或者追尾碰撞的情况下，安全带扣被向下拉；肩安全带合胯安全带立即拉紧。

The front seat belt system incorporate s belt tensionless. In the event of a head-on or tail-end collision the belt buckles are pulled downwards; the diagonal and lap belts are instantaneously tautened.

前排安全带系统与安全带张紧装置配合使用，在正面碰撞或者追尾碰撞的情况下，安全带扣被向下拉；肩安全带合胯安全带立即拉紧。

The front seat belt system incorporates belt tensionless. In the event of a head-on or tail-end collision the belt buckles are pulled downwards; the diagonal and lap belts are instantaneously tautened.

前排安全带系统与安全带张紧装置配合使用，在正面碰撞或者追尾碰撞的情况下，安全带扣被向下拉；肩安全带合胯安全带立即拉紧。

The front seat belt system incorporates belt tensionless. In the event of a head-on or tail-end collision the belt buckles are pull ed downwards; the diagonal and lap belts are instantaneously tautened.

前排安全带系统与安全带张紧装置配合使用，在正面碰撞或者追尾碰撞的情况下，安全带扣被向下拉；肩安全带合胯安全带立即拉紧。

The lower tab at the base of the skull pulls the upper tab backwards and down towards the neck, which snugs up the hood and also affects the ride height of the semi-stiff brim.

脑壳底部有下拉片，作用是将上拉片向后和向下拉，以收紧风帽，使其紧贴头部，另外还会影响到半软硬帽沿的 ride height （估计是指帽沿的立起高度）。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。