角

And 17. 6% respectively when increasing furnace arch height 10 times original height and adopting furnace arch stmcture of inequilateral depth and double fumace arch structure.

研究表明，当折焰角高度增加为原高度的10倍、采用左右不等深度折焰角和双折焰角三种结构时，炉膛出口残余旋转明显减小，末级再热器入口截面最大速度不均匀性系数M〓可分别减小30.7％、19.3％和17.6％。

According to the conclusion,the irrotational displacement isolator which can converse angular vibration to linear vibration is designed.

通过分析振动因素对光电设备成像质量的影响，揭示了振动与成像质量降低之间的关系，得到角振动对成像质量的影响大于线振动的结论；根据结论设计了将角振动转化为线振动的无角位移减振机构。

Based on constraints to angle-of-fall for cruise missiles, the variable structure terminal guidance law was designed for limiting the angle of fall in longitudinal and lateral directions. Thus the missile can be kept in desired azimuth and angle-of-fall for attacking the target efficiently.

针对巡航导弹落角限制的要求，分别对纵向和侧向两个通道设计出了限制落角的变结构末制导律，可以使导弹在期望的方位以期望的落角打击目标。

A FDTD program was written and the electromagnetic fields for various polarized incident beams are calculated and the polarization states of the diffractive waves are extracted. The relation between the polarization state of the diffraction wave and the grating balzed angle and polarization angle for the linearly polarized incident wave is analyzed; In the spectral range of 1530 ~ 1570nm, the polarization dispersion is studied for the linearly and circularly polarized incident beam.

用时域有限差分程序计算出任意偏振方向线偏光经过闪耀光栅衍射后的电磁场分布，提取衍射波的S偏振和P偏振分量，分析它们与光栅闪耀角和入射光波偏振角的关系；分析在1530 -1570nm光谱范围内，入射光波为线偏振波和园偏振波时，衍射光波的偏振色散特性与光栅闪耀角的关系。

A particularly investigation is carried out to the observibility of in-flight alignment using numerical simulation when the aircraft performs four kinds of basic maneuvre, namely linear acceleration, yawing, pitching and rolling. The thesis summarizes the two kinds of maneuvre. Simulation results show that the precision of transform alignment reach 5 minutes in 10 seconds if the aircraft performs two well-defined maneuvres.

首先本文采用数值分析的方法研究了直线运动、航向角运动、俯仰角运动和横滚角运动对传递对准系统可观性的影响规律；再结合飞机的实际运动，给出了空空导弹传递对准时的飞机飞行轨迹；"蛇形"飞行轨迹和摇摆运动飞行轨迹，仿真结果表明：按这两条飞行轨迹机动，在10s内传递对准精度可达到5′以下。

So, a roll gyro in an aircraft in a coordinated turn with a 60 degree bank will be measure a rate of zero, same as an aircraft flying straight and level.

因此，在60度横滚角的飞机上的陀螺仪测得的横滚角速率值为零，同样在飞机做水平直线飞行时，角速率值为零。

In the airfoil design for potential flow using conformal mapping technique, the metric coefficient was written as the analytical form.

在应用保角转绘技术的位流翼型设计中，研究了保角转绘网格中度规系数的解析表达；推导了将保角转绘模还原为翼型坐标的计算公式，而且将AF3算法用于位流方程的伴随方程的求解中，并在位流翼型的设计中得到了验证。

On the cloudy day, a very little diurnal difference was found in azimuth, directional and midrib angle.

而在阴天，阳生叶和阴生叶方位角、方向角和中脉角的日变化均很小。

Tusks of the narwhal whale were once sold as unicorn horns, and were immensely valuable.

独角鲸的长牙曾经一度被当成独角兽的角来贩售，价格十分昂贵。

The narwhal has a single horn (actually a giant protruding tooth) and if unicorns existed in the sea, went the argument in medieval times, surely they also existed on land.

独角鲸有一个角（实际上是一个巨大的突出的牙齿）而却如果独角兽生活在海底，则到了中世纪的争议，它们一定存在于陆地上。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。