往复运动

The liquid level can be measured. Said upper- and lower-limitation alarm is sound-light alarm. The valve can be controlled. The impurities in valve can be automatically removed by the reciprocating movement of valve, resulting in more convenient and more safe liquid level control.

本发明可对液位进行测量，具有上、下限报警功能，同时可以控制阀门开／关，并可通过阀门的往复运动自动清除阀内杂质、使液位控制更简便、更安全。

The control of an electromagnetic valve in the ABN brake chamber forces the spring to vibrate at a frequency of 18 times per second while braking, and also with certain natural frequency reciprocating motion.

利用停易ABN制动气室弹簧的振动及电控装置控制电磁阀激振，迫使气室弹簧在整个制动过程中不但以每秒18次的自振频率振动，同时又以一定的固有频率往复运动，利用弹簧的储能作用，将刹车时产生的声能和热能用弹簧的势能和动能来置换，从而达到降低制动噪声、温度和磨损的目的。

Sweep gold machine and the adoption of four special arrangements for mutual funds, turned to the contrary between the reciprocating motion, and two with qiangli on the aliquation pipeline, together with the subsequent adsorption multi-road ultravacuum sweeplng and circulatory system, this can be a clean rapidly Qing prunean powder on paper, not recreate the leak.

扫金机又采用四根特殊揩金带，进行相互之间转向相反的往复运动，并且后面两根带有强力吸气管道，再加上后面的高真空吸附多路清扫循环系统，国此可干净迅速地扫清纸张上多余的金粉，没有金粉泄漏。

In order to investigate the formation and damage of surface films ,electrical contact resistance method was used to monitor the formation of surface films in reciprocating lubricated cylinder bore/piston ring pairs.

为了研究摩擦副中表面膜的形成和损伤状态，用接触电阻法对润滑条件下往复运动的缸套/活塞环摩擦副进行了试验研究，提出了可揭示表面膜状态的表征方法，并成功观测到了磨粒对表面膜的损伤及恢复过程。

We are the pioneer among domestic enterprises to use single reciprocating screw-rod extruders in powder coating industry.

我们是国内最早将单螺杆往复运动挤出机应用于粉末涂料工业的企业。

We are the pioneer among domestic enterprises to use single reciprocating screw-rod extruders in powder coating industry.

我们是国内最早将单螺杆往复运动挤出机应用于粉末涂料工业的企业。在阿克苏·诺贝尔·长诚涂料有限公司，台湾高频企业股份有限公司点击查看全文

It is mainly made up of frame, gate board, screw pole, nut etc. rotate the handwheel by hand, then the screw pole drives the nut and gate board move in horizontal to and fro to open or close the valve.

螺旋闸门工作原理 working principle 主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。

It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the hwheel by h, then the screw pole drives the nut gate board move in horizontal to fro to open or close the valve.

主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。

It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nutgate board move in horizontal tofro to open or close the valve.

主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。

It is mainly made up of frame, gate board, screw pole, nut etc.Rotate the handwheel by hand, then the screw pole drives the nutand gate board move in horizontal to and fro to open or close thevalve.

主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。

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。