旋转轴

Rotation, store the data in the matrix as an axis/angle and do the conversions yourself or will need to convert it to a quaternion.A quaternion is composed of four components: a vector with x, y, z coordinates and a w rotation.

当用一个四元数乘以一个向量时，实际上就是让该向量围绕着这个四元数所描述的旋转轴，转动这个四元数所描述的角度而得到的向量。

The working principle of the brake is generated by the friction brake to increase the output shaft damping, reducing the sensitivity of the rotation axis.

该刹车的工作原理是由摩擦产生制动，以增加输出轴阻尼，降低了旋转轴的灵敏度。

Gimbal lock is the phenomenon of two rotational axis of an object pointing in the same direction.

万象节锁是指物体的两个旋转轴指向同一个方向。

To the S towards the axis of the gyre, constancies and rates both decrease, becoming variable and mostly less than 1/2 knot.

在旋转轴的南面，持续时间和发生频率都减小。同时变得易变并多数情况下速度小于1 / 2节。

The inventive idler wheel comprises: a lower part to generate suction force; an outer wheel contacting the ground when moving machine body; an inner wheel embedded into the inner side of outer wheel to support the weight of machine body; and a rotational shaft inserted and mounted at the centers of inner and outer wheels with the rotation function.

本发明的吸尘器滚轮包含：形成吸力的机体下部；机体移动时与地面接触的外轮；嵌入到外轮的内侧，支撑机体重量的内轮；插入并固定在内轮及外轮的中心，起到转动作用的旋转轴。

List of areas in the pattern to be rotated (6 maximum if using keyboard entry). Areas must lie to

将被旋转的面数（最大值是6，如果是用键盘输入的话）面必须处于旋转轴的一侧。

ROLL, The rotation of an airplane around its longitudinal axis.

横滚， 飞机用纵轴作为旋转轴时的运动。

Using magnetic fluid dynamics and thermodynamics theory,a study on the results of axial bearing pressure ability of rotation axis magnetic fluid static seals was introduced.

介绍了利用磁流体动力学、热力学理论，研究旋转轴磁流体静密封轴向承压能力的结果。

To improve accuracy of detection of current direction, components of magnetizing current and torque current are transformed into two-phase stationary frame. Therefore compensating voltage vector can be decided according to the sector the current vector is locating.

为了提高电流极性检测的准确性，利用旋转轴系中的励磁电流和转矩电流分量经过坐标反变换，判断电流在两相静止轴系所处的扇区来决定需要施加的补偿电压。

Its control object is a plate with two mutually perpendicular shafts, and its purpose is to balance a freely rolling ball in a specific location or to make it move following the specific trajectory on the plate.

其控制对象是具有2个相互垂直的旋转轴的板，目的是让一个自由滚动的球能够平衡在板上的特定位置，或使其沿着特定轨迹运动。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。