饮用时，开启盖子，由于浮子产生的浮力，吸管就会自动浮出瓶口，供饮水者使用。
After the cover of the container is opened, the straw will be floated through the container mouth automatically for the drinker to use conveniently.
对自动排气阀不能用于虹吸管排气的理由进行了分析。
The reason why the automatic exhaust valve failed to be used for air exhaust from siphon tube was investigated.
这是可以实现的，因为当在一个池内安装两个虹吸管时，虹吸管可以进行自动交替排放。
This is possible because the siphons are designed to alternate automatically when two siphons are installed in one tank.
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