一进气压力，双缸端口提供的压力，双作用气缸或执行器和一个或多个渠道从排气汽缸压力。

One pressure inlet, two cylinder ports providing pressure to the double acting cylinder or actuator and one or two outlets to exhaust pressure from the cylinders.

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这个问题是加剧了少量的空气泄漏进入气缸的进气阀旋转。

This problem is made worse by the small amount of air that leaks into the cylinders around the rotary intake valve.

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在二行程发动机中，活塞起到阀门的作用，当活塞接近下止点时，使气缸壁上的进排气口打开。

In the two-cycle engine, the piston ACTS as a valve, clearing valve ports in the cylinder wall as it nears BDC.

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