查询词典 concave angle

Since the varies of gun attitude angle and the vertical vector of the homograph plane are one-to-one, all the elements of modulation gun can be transformed into the calculation of the vertical vector angle, which avoids the calculation accuracy loss of the traditional approach under the condition of the tiny attitude angle disturbance.

由于火炮姿态角变化与相应平面的法向量是一一对应的，从而可将调炮诸元转化为法向量夹角来计算，这样可避免传统方案在微小姿态角扰动情形下导致的计算精度可能的损失。

Through some cases analysis,the paper determined whether the incident angle of ray in cross hole seismic exploration being less than critical angle or larger than critical angle is the mark of success or failure.

本文通过对一些实例的分析，确信井间地震勘探的射线入射角小于或大于临界角是成功或失败的标志。

The paper determined whether the incident angle of ray in cross hole seismic exploration being less than critical angle or larger than critical angle is the mark of success or failure.

确信井间地震勘探的射线入射角小于或大于临界角是成功或失败的标志。

The changes of chamber angle included angle recession, anterior adhesion of iris and angle closure.

房角改变包括房角后退、残留虹膜根部前粘连、房角关闭。

With the method of vector analysis and coordinate transform,the direct solar radiation angle factor、the earth infra-red radiation angle factor and the reflected solar angle factor by earth are calculated.

在计算中利用矢量分析和坐标变换的方法求解出了太阳直接辐射、地球红外辐射和地球反照的辐射角系数，再根据传热学理论建立了瞬态热平衡方程。

A slim azimuth 20 independent-arm caliper logging tool;2. Design of TFY-1 universal azimuth jointer with a restrained gyroscope;3. The pit shaft parameters of the elevation angle,the azimuth angle,the tool of facial angle and so on are obtained after the computation.

陀螺测斜技术以动力调谐速率，陀螺测量地球自转角速率分量和石英加速计测量地球加速度分量为基础，经计算得出井筒的倾斜角、方位角、工具面角等参数。

A new kind of dynamic model was presented based on Lagrange theorem. The steering angle, tilting angle and the pitching angle are taken as the inputs of the model.

基于拉格朗日方法提出了以转动车把的控制量、调整后轮驱动速度的控制量和调节机器人重心的控制量作为输入量的自行车机器人的3输入3输出的非线性动力学模型。

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。

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。

In this paper it is given a more effective formula about the direction angle of the main plane in the plane stress state.2. To introduce the principle and method for drawing 3-D graph with the compuer and for checking up with the computer cursor,to give outline of expressions of 3-D curve,outline of cursor meterage of well depth,well deflection angle and direction angle at any section.

介绍了在实践中总结出的计算机绘制与光标检测3维图形的原理和方法，给出了3维动态图形到屏幕坐标的变换式、各测点的平滑连接方法以及描绘与检测井眼轨迹曲线的典型应用，实现了空间井眼轨迹曲线的任意旋转、投影和给出了任一井段的井深、井斜角和方位角的光标检测软件。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48