查询词典 rotation direction

They include:collinearity--an invariance under the projective transformation group;Parallelisminvariance under the affine transformation group;the direction of angles--aninvariance under the rotation transformation group.

这些几何不变性质包括共线性——在射影变换群下的不变性；平行性——在仿射变换群下的不变性；角的方向——在欧氏平移变换群下的不变性。

JT91-200 artillety gyro altazimuth is a fix instument which can research the grid north automatically and determine grid north azimuth at any direction.It works by making use of the physical features of gyro and influences of earth rotation.

JT91-200型炮兵陀螺经纬仪是利用陀螺本身的物理特性和地球自转的影响，实现自动寻找其北方向和测定任一方向线的真北方位角的定向仪器。

For the size and direction of rotation angle of quantum rotationgates, a simple determining method is proposed.

对于量子旋转门的转角大小及方向的确定，提出了一种简易快捷的新方法；对旋转和变异操作，提出了基于量子位Bloch坐标的新算子。

Due to the rotation of the field lines near the source, the asymptotic limit of a field line is not exactly in the radially outward direction and as a consequence, the image in the far field is slightly shifted.

正是由于能量流线的涡旋结构，其在远场的能量流线的渐进线并不是由点源向外沿径向发出。因此由远场观测，点源的成像产生了微小偏移。

Ok,the kite has completed it's half axel rotation and is ready to fly off in the opposite direction.

好了，风筝完成了Half Axel旋转，并准备反方向飞走了。

The end walls (14,16) of the pump housing (10) are adjacent to the rotor (20) in the direction of the axis of rotation thereof.

所述泵壳(10)的壳体端壁(14、16)在转子(20)的旋转轴线的方向上与转子(20)相邻。

The blades at its periphery throw off air centrifugally in a direction following the rotation.

轮周叶片将空气沿着转动方向抛离轴心。

Because only one of the channels controls switching, the same edge of each tooth is used for determining output signals, in both forward and reverse target rotation, with direction information available on the first magnetic edge after a direction change.

因为只有渠道之一的控制开关，每颗牙齿的相同边缘用于确定输出信号，在这两个目标正向和反向旋转的优势，与磁场方向有关资料后的首个方向的变化。

To further study this problem, the optical axis is rotated by an arbitrary angle. A striking phenomenon is discovered that the Brewster angle is always equal to the rotation angle. This is because the waves in the direction perpendicular to the optical axis become evanescent since the permittivity is positive while the permeability is negative in this direction.

然后进一步的研究了主轴不垂直于界面的情况，发现主轴转动的角度恰好等于此时的Brewster角，这是因为此时垂直于主轴的方向上介电常数为正磁导率为负，只有倏逝波而没有可传播的波存在，因此反射系数为0。

It according to rotates divides into the positive rotation for the direction and the semi finished materials material flow direction similarities and differences and instead turns on lathe, including turns on lathe, the stable spinning and finally turns on lathe three stages.

其按旋轮进给方向与毛坯材料流动方向的异同分为正旋和反旋，包括起旋、稳定旋压和终旋3个阶段，成形中的工件可划分为3个区域，即未成形区、成形区和已成形区，材料所受到的应力、应变在不同阶段也具有不同的特点。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。