Dustproof and sealing structure extend working life of lubricants and other

独一无二的防尘密封结构，延长寿命的润滑油和其他零件

Translation : attach both sides and create a vacuum to hold door in place and for sealing .

解释：当两扇门都关上后中间抽成真空，以保持门的位置及密封性。

The mice , however , arrived quite recently on sealing vessels .

然而不久前，老鼠乘密封船来到这里。

Leaky duct work can also eat into the efficiency , so sealing ducts could make a big difference .

管道漏水也会导致空调工作效率下降，所以密封管道变得非常重要。

This is connected via a sealing valve to the larger , more powerful lower chamber , or ventricle .

通过密封阀与更大的，更强的位于下面的腔室心室相连。