应用矢量变频调速技术，使旋转的金刚石锯片实现横向和纵向的往返移动以及精确的定位控制。
Horizontal and longitudinal movement as well as accurate positioning of the rotating diamond saw blade can be realized by means of vector convertor speed governing technique.
本发明使待烘干的物料经烘干滚筒至套筒往返移动，延长物料在烘干装置的时间，使物料得到充分干燥。
The method and the device enable the materials to be dried to move to and fro from the drying roller to the sleeve, prolong the time of the material in the drying device and fully dry the material.
当时他正上来要去参加一个会议，他的秘书打电话到他的移动电话原型上说会议已被取消，免去他徒劳往返一场。
His secretary called him on his prototype mobile phone as he was getting into his car to drive to a meeting to say that it had been cancelled-thus saving him from a wasted journey.
本装置不用任何外部件对气缸进行换向，就能达到高速往返运动，能使物体快速移动。
No external part is required by the device for reversing the cylinder, and the high-speed back-and-forth motion can be achieved, so that an object can move fast.
在800米建筑物中由20部电动扶梯组成还有3条移动人行道。使得旅游者往返大厦之间十分便利不用到建筑物的地面。
The 2,600-foot (800-meter) structure, consisting of 20 escalators and 3 moving sidewalks, allows commuters and tourists to high-rise-hop without ever descending to the ground.
在800米建筑物中由20部电动扶梯组成还有3条移动人行道。使得旅游者往返大厦之间十分便利不用到建筑物的地面。
The 2,600-foot (800-meter) structure, consisting of 20 escalators and 3 moving sidewalks, allows commuters and tourists to high-rise-hop without ever descending to the ground.
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