The valve outlet sealing area is also flat.
阀门排气口密封区域也是平的。
youdao
Sealing area is equal to 95% of the valve's length.
密封面积相当于阀体长度的95%。
This batch of your products have a problem: all of the package bags were broken at the sealing area.
这批次的产品全部在包装袋的封口处呈现破包问题。
Firefighters arrived within moments, sealing off the area and evacuating the house in case any further debris fell from the roof.
BBC: Vortex from plane landing at Heathrow damages roof
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