AW series of large diameter valves using pneumatic actuator fork-type transmission, reasonable structure, output torque, a double-acting and single acting.

大口径阀门采用系列aw型气动执行器拔叉式传动，结构合理，输出扭矩大，有双作用式和单作用式。

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A fork waveguide model is proposed and the mode matching and multi-mode network technique are used to analyze the transmission characteristics of rectangular tunnel with metallic pit prop.

针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题，提出用分叉波导模型并用模式匹配法和多模传输理论分析传输特性。

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The prior wafer transmission device fails to adjust a wafer fork horizontal when the wafer fork is inclined, which results in breakage when the wafer handle collides the wafer.

现有的晶圆传送装置，当晶圆叉子倾斜时无法将其调水平，造成晶圆抓手撞到晶圆引起破片的现象。

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