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Press the start button (Green) on the electric control case.
按下电控箱上泵的起动按钮(绿色)。
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Press red button, wait for green light and speak into the microphone.
按下红色按钮，绿灯亮时对准话筒报警。
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Press red button, wait for green light and speak into the microphone.
按下红色按钮，绿灯亮时对准话筒报警。
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