在原有螺杆式、卷扬式和液压式启闭机的基础上，设计研制了齿销式启闭机。
On the basis of original screw type, winding type and hydraulic type Headstock, a kind of dentate annul headstock is designed and manufactured.
门式起重机是水利水电工程中不可缺少的大型设备之一，在水电站用于开启和关闭闸门的门式起重机称为门式启闭机。
Gantry crane is the indispensable one of the large-scale equipments in hydropower station, the gantry cranes which are used in hydropower to open and close sluice gates are named gantry hoists.
沙溪口表孔弧门是我国第一个采用斜拉式双缸液压启闭机操作的水电站。
Shaxikou Spillway Segment Gate is the first hydraulic Power Station controlled by skew axis double drum hydraulic hoist in our country.
后拉式双缸液压启闭机是新型的弧门启闭机，在我国刚刚开始应用。
The machine drawn back by hydraulic Pressure of two oil cylinder is a new machine used in the spillway radial gate, it is beginning to be used exactly in our country.
后拉式双缸液压启闭机是新型的弧门启闭机，在我国刚刚开始应用。
The machine drawn back by hydraulic Pressure of two oil cylinder is a new machine used in the spillway radial gate, it is beginning to be used exactly in our country.
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