1.
To strike the upper part of(a ball), giving it forward spin.
上旋击球击打（球的）上半部分，使其向前旋转
2.
Forward rotation imparted to a ball by a stroke, as in tennis.
上旋击球后产生的球向前旋转，例如在网球中
3.
A positive value indicates that the wheel was rotated forward, away from the user; a negative value indicates that the wheel was rotated backward, toward the user.
正值表示滚轮向前旋转，即远离用户的方向；负值表示滚轮向后旋转，即朝向用户的方向。
4.
A forward spin on a ball resulting from such a stroke.
上旋上部击球形成的向前向上旋转
5.
Vehicle's front wheels by use of the steering-wheel
（机动车方向盘旋转时）前轮转向（的最大程度）
6.
However, the bulk of metal in the retreating side is transported backward into the advancing side along the rotation direction.
返回侧金属沿旋转方向流入前进侧。
7.
In addition to forward and backward rotation, center of rotation and rotation angle in certain procedures can be set up.
除向前和向后旋转以外，旋转中心点和旋转角度在某种程序上可设置。
8.
spin (usually of a moving ball) that retards or reverses the forward motion.
延缓（球的）向前运动或使其向后退的旋转。
9.
When swinging transmission machine operation, the force constant rotation axis to make efforts before and axial rotation move backward.
当摇摆传动机械运行时，等速旋转入力轴使出力轴向前和向后旋动。
10.
pitching headlong with a rolling or twisting movement.
伴随一个旋转或扭曲的运动头向前俯仰的。
11.
Feedforward fuzzy algorithms research of stabilized platform in rotary steering drilling system
旋转导向钻井稳定平台前馈模糊算法研究
12.
Research on Bending Rotation Test of Rotation Shaft in Point the Bit Rotary Steerable System
指向式旋转导向系统旋转轴弯曲旋转试验研究
13.
A turning to the right.Used especially of the plane of polarization of light.
向右旋转向右旋转，尤指光的偏振面
14.
When swinging drive mechanical operation, such as the rotation speed of the force to make efforts axial shaft before and backward rotation and enable higher plane.
当摇摆传动机械运作时，等速度的旋转入力轴使出力轴向前和向后旋转，并使平面升高。
15.
inboard turning
内向旋转(从尾向首看
16.
forward spin (usually of a moving ball) that is imparted by an upward stroke.
对球体的向上一击所引起的该球旋转并向前飞行。
17.
At present, the technique of back sliding step, long and short rhythm and back rotation is popular in the world.
目前,国际上流行背向滑步、长节奏和背向旋转三种推铅球技术。
18.
A usually high-speed ski turn used for changing the direction of descent or stopping, performed by shifting the weight forward and turning with the skis kept parallel.
作制动转弯在转变下滑方向或停止时的高速滑雪旋转，通过向前转移重量并平行地旋转滑雪板来完成