...数，水力半径，密封星形给料机，迷宫密封式电子配料皮带秤。 [gap=416]Key word: The Cull mobile index, the hydraulic radius, the sealstar type gives the material machine, labyrinth type electroningredien..
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The small turning radius, more flexible, hydraulic steering system, flexible steering. The pilot operation of hydraulic system, easy to operate.
转弯半径小，更加灵活，液压转向系统，转向灵活。先导操作液压体统，操作方便。
Imitating the project of electrical and hydraulic proportional valve, a CAM mechanism is adopted to input and convert the signal of crane arm's radius changing.
系统的控制信号输入方式借鉴电液比例阀方案，采用凸轮杠杆机构，从而利用了凸轮容易实现任意函数关系转换的优点。
The design method of U-shaped channel optimal hydraulic cross section and the calculation equation used to determine the bottom circle's radius of U-shaped channel is proposed in this paper.
提出了U形渠道水力最佳断面的设计方法，并给出了确定U形渠道水力最佳断面底弧半径的计算公式。
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