The supply was turned all the way up. It forces the valve.

下面的供水管开得太大 把阀门冲开了。

When the ventricle is filled, it contracts, forcing the tricuspid valve to close and forcing the blood through the pulmonary semilunar valve on its way to the lungs.

心室充盈时，收缩，迫使三尖瓣关闭，迫使血液通过肺半月瓣进入肺部。

When this right ventricle contracts, it forces the pulmonary semilunar valve to open, allowing a rush of blood into the pulmonary trunk, which is the large artery that leaves the right ventricle.

右心室收缩时，它会迫使肺半月瓣打开，从而使血液涌入肺动脉，后者是离开右心室的大动脉。