稍有些阻力，可以旋下隔膜。

Some slight resistance, you can divide the next spin.

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要更换安全阀阀瓣，握住上部引导翼，旋下隔膜压力板上的螺丝。

To replace the relief valve disc, hold the upper guide fin and unscrew the diaphragm pressure plate.

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可以保证电磁轴有足够的压力，保持其连接稳固，这样就可以旋下隔膜。

Magnetic axis to ensure there is enough pressure to maintain its solid connection so that you can divide the next spin.

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