棘

Similarly, a axis FEM model was constructed to simulate the axis fracture, emphasized on the odontoid process. Three kind of odontoid process fracture were analysed on this model, which occurred respectively on the tip, the middle and the fundus. The results gave the best angle to fracture the odontoid process of the axis.

四、建立了枢椎的三维有限元模型，对枢椎齿状突骨折机理进行了理论上的研究，重点针对临床上齿突骨折的三种分类：1、齿突尖骨折：2、齿突腰部骨折：3、齿突基底部骨折，赋予齿状突在矢状面沿各种角度下受力条件，模拟寰椎前弓、寰椎横韧带以及C2-3棘间韧带对枢椎造成的暴力破坏，确定了最可能引起齿状突暴力骨折的受力角度。

Key words］Foramen rotundu;Foramen ovale;Foramen spinosum;hypoglossal canal;hypoglossal nerve

关键词］圆孔；卵圆孔；棘孔；舌下神经；舌下神经管；CT；MRI

Researchers expected that the gene responsible would vary from lake to lake. Instead, they found that each group of stranded sticklebacks had lost its armor by the same mechanism: a rare DNA defect affecting a signaling molecule involved in the development of dermal bones and teeth. That single preexisting variant--rare in the open ocean--allowed the fish to adapt rapidly to a new environment.

研究者希望不同的湖之间相关的基因有所差别，可是，他们发现每一组搁浅的棘鱼都通过同样的机制失去了它们的装甲：一种罕见的DNA缺陷影响了一个涉及皮内骨和牙齿生长的信号分子，这一个先前存在的变数——在开放的海洋中很少存在——使得鱼可以迅速适应新的环境。

One of the great taxonomists is J.L.B.

南非的J、L、B、Smith是世界上最好的分类学家之一，他是令人难以置信的腔棘鱼的发现者。

It is considered dull work to catalogue fish. One of the great taxonomists is J.L.B.

南非的J、L、B、Smith是世界上最好的分类学家之一，他是令人难以置信的腔棘鱼的发现者。

One of t h e great taxonomists is J.L.B. Smit h of Sout h Africa, t h e discoverer of t h e fabulous coelacant h .

南非的J、L、B、Smit h 是世界上最好的分类学家之一，他是令人难以置信的腔棘鱼的发现者。

For the foramen ovale in MRI, bilateral symmetry 13 cases(65%) and asymmetry 7 cases(35%);rotundum 8 sides(20%),ovale 32 sides(80%).

全部患者卵圆孔及棘孔在增强T1WI上为双侧显示，卵圆孔两侧对称13例(65%)，两侧不对称7例(35%)；呈圆形8例(20%)，呈椭圆形32例(80%)。

It took many years but they did find a second one in 1952 on the Comoro Islands between the tip of Madagascar and East Africa.

多年以后的1952年他们在位于马达加斯加和东非之间的科摩罗群岛上发现了第二条腔棘鱼。

In the present study the activity the extra-cellular proteases of Micromonospora echinospora, an actinomycete that produces spores in Antonie van Leeuwenhoek (2006) 89: 191 –195 Springer 2005

这本书中记载了有关棘袍小单孢菌（一外细胞的蛋种产生孢子的放线菌）蛋白酶活动的研究。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。