The carriage should not move forward, when the nozzlecover is opened. There should also be no screw movements. The monitor should display the message, informing about the opened nozzlecover.
当射嘴保护罩未关闭时射台不能前移，螺杆也不能有动作。电脑要有显示提示射嘴保护罩未关。
2
The paper presents the installation method of main parts such as intake annular pipe, cover and nozzle, providing reference for similar projects.
介绍该电站水轮机进水环管、机盖和喷嘴等安装工艺方法，为相似机组的安装提供借鉴。
3
Each of the hot nozzle body is also a hot nozzle core cover.