把任一个控制手柄拨到工作位置上，再按“起动”按钮，总接触器应不动作，则说明零位保护已发挥作用。
Put any control handle to the working position, press the "start" button, the total contactor should not move, then explain the zero position protection has played a role.
GEL7511能控制辊缝调整的位置，发出起动、停止开关信号。
The position controller GEL7511 can control the position of roller seam adjustment, the switch signal of start and stop.
汽油机起动后，将阻风门打至全开位置。
After the gasoline engine is started, push the damper strangler to the full open position.
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