牵引

There are nine bivalents in pollen mother cells at late diplotene or early diakinesis, and the homologous chromosomes essentially arrange on the equatorial plate at late metaphase Ⅰor early anaphase Ⅰ, then the two homologous chromosomes of each bivalent separate from each other and move to two opposite poles drawn by spindle fibers.

在减数分裂双线期末或终变期初，可以观察到9个二价体，在中期I末至后期I初，同源染色体基本排列在赤道板上，然后在纺锤丝的牵引下二价体的两条同源染色体分开，分别移向两极，每一极有9条染色体，从而确认该属植物的染色体基数为x=9。

BACKGROUND: Appropriate direction and angle of traction for the vertebral artery type cervical spondylosis make significant effect.

背景：适宜方向、角度的牵引对于椎动脉型颈椎病疗效显著。

Objective To compare the fuctional and morphological changes of the cervical spine of 18 patients (28 disci herniations) under different directions in herniation of cervical disc.

中文摘要：目的对18例患乾总计突出颈椎间盘28个，比较不同牵引方向对颈椎间盘突出症的颈椎功能变化规律。

And to his dissimulation the rest of the Jews consented, so that Barnabas also was led by them into that dissimulation.

其余的犹太人也都跟他一起装假，以致连巴尔纳伯也受了他们的牵引而装假。

Objective To introduce the progressing history of DO technique,and report the characteristics of the home made type MS 1 internal mandibular distracter,and the effects of application of it in animal experiment.

目的 报告自行研制的MS 1型下颌骨骨牵引延长器的结构特点及在颌面骨延长动物实验中的应用效果。

After a seven day latency period a distractor device is activated 1 mm per day until the desired expansion is obtained.

经过七天的潜伏期1牵引装置被激活1毫米每天直到获得所需的扩大。

Objective: To study the long-term stability of maxillary distraction with Rigid External Distractor.

目的：初步研究探讨外置式牵引成骨技术矫治重度上颌后缩畸形术后的稳定性。

But the traction and heat resistance are not as good as DNRⅢ.

牵引性能、耐热性能不如DNRⅢ。

The Double Eagle brand products are exported through Beijing, Shanghai, Guangzhou, Jiangsu ,Shandong etc. Main products: a series of x-ray protected products, a series of x-ray protected device products; one-off medical plastic instrument mutilated machine, vertebrae tractor, medical bed style air cushion, medical oxygen bag, medical air cushion, food tractor etc. The medical instruments are sold all over the country.

公司生产的双鹰牌防护系列产品通过北京、上海、广州、江苏、山东等外贸批量出口，打入国际市场，主要产品有：X射线防护铅胶系列产品；X射线防护装置系列产品；一次性医用塑料器具毁形机、柔软型颈椎牵引器、医用床式气垫、医用氧气袋、医用气垫、脚踏吸引器等医疗器械产品，产品畅销全国各地。

In terms of domestic indoor section posts of the electrified double-track ed railway traction network, there are more than 10 types of main electrical schemes for the primary system.

在国内复线电气化铁道牵引网运行的户内型分区所中，一次系统主接线有10余种。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐