使转动

In this position, the propeller shaft is made to rotate in a reverse direction so that the car goes Backwards.

另外还有一个倒档，在这一档中，传动轴朝相反的方向转动，可使汽车倒向行驶。

A new-type bike features that its pedal crank has an arc rack bar acting on the ratchet gear in single direction and in turn driving the drive chain wheel, a reset unit composed of crank mechanism is used to make left and right pedal cranks be pedaled alternatively, and its front movable saddle plate is connected via connecting rod to pedal crank for making rider comfortable. Its advantages are high drive performance and efficiency and saving labour.

一种新式自行车，其最大特点是蹬踏杆上含有一弧形齿条，由该弧形齿条上的轮齿作用于具有单向离合的棘齿轮，从而带动主动链轮转动，由曲柄机构组成的复位器使左右蹬踏杆能够交替连续踩踏以驱动自行车行驶，前活动座板与蹬踏杆由连杆相连结，从而实现同步摆动给以乘骑者踩踏感到舒适，该发明具有传动性能好，效率高，力损耗小等优点。

First of all, horizontal swing to solve big problems, re-allocation of a motor sleeve (with the bronze with stent hole so), so that the electrical sleeve just in bronze wall bracket can rotate, reducing the gap; further axial movement to solve the problem with the motor shaft with Hexagon Hexagon washer so thick 0.6mm.

首先解决横向摆动大的问题，重新配做一个电机轴套，使电机轴套在铸铜支架内壁刚好能转动，减小间隙；再解决轴向窜动问题，与内六角电机轴配做内六角垫圈，厚0.6mm。

First, using the developed seed rope twisting machine, rice seed is entangled in paper tape with the requirement of agriculture technology and made in seed rope reel, as make twisting job isn"t limited by farming season at time and can actualize industrialization in space. These can also ensure the parameter"s standardization of the sowing row spacing, socket spacing and the number of grains per socket, and offers technology basis for agricultural order form.

本文的主要研究内容与结论如下： 1、为确定种绳直播机仅靠种绳的拉力使其工作是否可行，对种绳的组成部分——棉线和无纺布进行抗拉强度试验，同时对种绳单位长度上的捻劲个数及种绳盘的转动惯量和轴承的摩擦力矩进行了较深入的试验研究。

Although these combined relative error γ.1%, in order to obtain more precise measurement results, it should be pay attention for the level of the torsion pendulum, the uprightness between the photoelectric doors and the block rod, the location of the being measured substance, the similarity of the shape and the quality between the standard object and the being measured object, human factors and so on.

利用扭摆法测量物体的转动惯量，受到待测物体摆动周期测量误差、装配位置偏移误差和轴线倾斜误差的影响，虽然这些相对误差总合γ。1%，为了使测量结果是加精确，实践中应该注意扭摆的水平、光电门与挡光杆的垂直、待测物重心的位置、人为误差的影响以及待测物与标准件形状、质量的相近性等。

Sun wheel and planetary gear are made of post-carburized hardened grinding teeth gear while internal gear is of quenching and tempering gear.

工作时太阳轮浮动，以便使其轮齿同时和三个行星轮均匀接触，达到均载目的；行星轮安装在行星架上，在绕自身轴线传动的同时，也随行星架一齐转动。

It was silent for four years but was eventually turned a quarter of a revolution so that the crack was not under the striking hammer.

沉寂4年之后，指针最终被转动四分之一周，使裂缝避开钟摆。

When you press on the foot brake, friction bands push hard against the wheel drums and stop the wheels from turning.

当你踩下脚制动时，摩擦片就会紧紧地压在车轮制动鼓上，使车轮停止转动。

For example, a controller sends a series of pulses to a step motor in a joint of a robot arm to rotate it a certain angle exactly as program requires.

例如。控制器将系列脉冲送到机器人手臂关节的步进电机使其转动如程序所要求的角度。

For example, a controller sends a series of pulses to a step motor in a joint of a robot arm to rotate it a certain angle exactly as program requires.

控制器将系列脉冲送到机器人手臂关节的步进电机使其转动如程序所要求的角度。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。