常见的

BACKGROUND: There are many in vitro selection method of sperm, and swim-up and density gradient centrifugation are commonly used.

摘要背景：精子体外优选方法很多，最常见的是上游法和密度梯度离心法。

Cervical Cancer is one of the most deadly diseases among women.

宫颈癌是女性最为常见的疾病之一。

The most common site for this problem is along the cheekbone and on the cheek.

最常见的网站，这个问题是沿颧骨和脸颊。

Of the many clinical symptoms, the frequently seen are seborrheic dermatitis, proliferation of blood vessels around cornea, cheilitis, corners of mouth look wet, white, thicker than usual, black and blue with swelling, nipple hypertrophy or atrophy, and often complicated by scrotal dermatitis.

维生素B2缺乏病临床症状较多，常见的有脂溢性皮炎、角膜周围血管增生、唇炎、口角湿白增厚、青红肿、乳头肥大或萎缩，常并发有阴囊皮炎。

Plant species are the most common Central European – oak, chestnut and beech trees, between trees, and hawthorn, ilicele, shock and blackberries, between bushes.

那里生长着中欧最常见的植被-树林从中有橡树，栗树和山毛榉，在草丛之间有山楂，ilicele，shock，和黑莓。

Chicken pox is a common, but very contagious disease.

水痘是一种常见的，但是非常传染性疾病。

Chickenpox is most common between the ages of two and eight.

水痘是最常见的年龄介于二和八。

Chickweed , tasty and nutritious, is common spring weed that in milder climates may be found throughout the winter.

繁缕，可口而且营养丰富，是春季常见的草，如果气候暖和，甚至整个冬季都能找到它。

China clay is an ancient art common folk arts.

泥塑艺术是我国一种古老常见的民间艺术。

Other more common skin problems facial chloasma.

其他比较常见的肌肤问题是面部黄褐斑。

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