Push valve handle onto extension assembly.
将阀门手柄压到加长组件上。
You have to push on the handle to turn it; it's very stiff.
手柄很不灵活，你必须用力推才能转动它。
When you push down on the handle of a knife you exert a force.
当你按下刀把时，你施加了一种力。
Push the big handle to the opposite direction of motor.
将手柄推至电机相反方向到底。
Push the big handle to the opposite direction of motor.
将手柄推至电机相反方向到底。
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