Hence, not only bubbling but also bridging shall be restricted for the seal criterion of hanging downcomer.
因此，悬挂式降液管液自封标准既应限制漏气量，还应限制气液堵塞。
The previous seal line proposed by Xu is too conservative, in which the criterion of almost not allowing the vapor to leak through the downcomer was set.
以往徐崇嗣提出的自封线以降液管几乎不漏气作为自封点。
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