向内弯曲的

Results:① The distance between handle of malleus and stapes head was(2.38±0.19)cm(2.00～2.70cm), the point selecting for measuring was outer margin of handle of malleus and stpes head.②The cross section form of one_third of the handle of malleus at the end, was triangle, the anteroposterior diameter of handle of malleus was(0.79±0.12)mm, the exterior and interior diameter was(0.58±0.10)mm at the crook point,the angle of line of manubrium mallei laid(83.24±8.33)°(66～98°)posteroinferior to arch of zygoma.③The long axis of prosthesis formed(27.60±1.75)°(24.6～30.2°)angle with the perpendicular of stapes.④The dependablity between the malleus_stapes distance and transverse diameter of tympanum, the location of umbo in tympanic membrane, the diameter of manubrium mallei, angle of line of manubrium mallei and arch of zygoma were not statistically significant.

结果：①锤_镫距离最短为(2.38±0.19)cm(2.00～2.70cm)，测量点为锤骨柄末端1/3处外缘和镫骨头；②锤骨柄末段1/3横断面形状接近三角形，弯曲处前、后方向直径为(0.79±0.12)mm，内、外方向直径为(0.58±0.10)mm；锤骨柄与颞线的成角为(83.24±8.33)°(66～98°)；③赝复物长轴与镫骨垂直方向成角平均为(27.60±1.75)°(24.6～30.2°)；④锤_镫距离与鼓室横径、鼓脐在鼓膜上的位置、锤骨柄直径、锤骨柄的方位的可能相关因素之间相关性检验无统计学意义。

Four-hole plate provides the strongest torsion fixation and quincunx shaped nail provides the strongest bending fixation.

4种内固定器中四孔钢板抗轴向扭转性能最好，梅花钉的三点弯曲刚度最强，对于胫骨骨折，Ender钉和矩形钉可以提供较好的稳定作用。

The pattern of the tyre of agricultural vehicles has to fit in with the inclement working situations of the vehicles,which brings some difficulty to the pattern block mold design of the tyre.

文章介绍了农用轮胎的特点和轮胎模具的生产流程，然后结合轮胎花纹块的铸造、抛光、机械加工等工艺要求，阐述了农用轮胎花纹块模具设计方法并导出计算公式，内容包括：径向断面的工艺尺寸设计、轴向与周向的展开与弯曲设计；提出采用Coons曲面构造出模具内腔壁曲面的方法。

A second portion of the passage bends in the suction chamber substantially perpendicularly and then extends toward a valve plate of a compressor.

通道的第二部分在吸入腔内基本垂直地弯曲，然后向压缩机的阀片方向延伸。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。