壁的

The sperm originate in gonial cells in the walls of seminiferous tubules.

精子产生于输精管壁的性母细胞。

After a comprehensive consideration of force, shape of head and manufacture, it is concluded that the shell of reactor shell with large diameters should use semispherical head, or have a discharger installed at the top of it.

三、中浓纸浆流经上封头时，由于断面收缩和封头顶部容器壁的作用力，在椭圆和半球形封头内出现沟流和滞流现象。

The relationship between the morphological features and the adaptability to lower-oxygen was analyzed by stereoscopy.

牦牛肺小叶结构明显，肺泡Ⅰ型上皮菲薄，构成肺泡壁的绝大部分。

The suboccipital sinus, in the suboccipital region, is similar to the cavernous sinus in embryological development and functional and pathological features, as well as transitional patterns of the arterial wall structures.

枕下海绵窦位于枕下区，与海绵窦在胚胎学发育、功能和病理学特征以及动脉壁的过渡类型上都具有相似性。

The collecting tinder adapts a good combination of Chinese and Western elements.

这次火种采集采取了中西合壁的方式，象征着全世界青年共同拥有朝阳。

The enhanced CT value was found significantly lower in wall of cavitary lung tuberculosis than in the lung cancer,inflammatory lung cavity and lung metastases(P＜0.05),which was 16.8,32.2,28.7,29.4 HU respectively.

5肺结核空洞壁的CT强化幅度明显低于肺癌、炎性肺空洞及肺转移瘤(P＜0.05)，强化值分别为16.8、32.2、28.7、29.4HU。

Mature pollen grain is of 2 - celled type .

花药壁的发育为基本型，小孢子减数分裂为连续型，小孢子四分体为四面体型，成熟花粉为二细胞型。

It was found that the highest circumferential stress exists in small artery of human.

并发现人体血管中，小动脉壁的周向应力最高。

Objective To study secondary wall formation of helical tracheary elements in the stem of Cucurbita moschata.

目的 观察南瓜茎螺纹导管发育过程中次生壁的形成过程。

The vascular dermatosis is a inflammatory disease which rises in the vessel wall of cutaneous blood vessel. The treatment of the disease is hard, and it is one of dermopathic knotty cases.

血管性皮肤病是一类原发於皮肤血管管壁的炎症性疾病，治疗颇为棘手，为皮肤病疑难病证之一。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。