Since the gas bag is added, the pressure increase within the hydraulic chamber is very slight when the string collar passes through the packing element.

由于增加了气囊，管柱接箍通过胶筒时，液压腔内的压力升高很少。

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They both went in a great hurry, and when they were gone the house seemed dreadfully quiet and empty, and the children wandered from one room to another and looked at the bits of paper and string on the floors left over from the packing, and not yet cleared up, and wished they had something to do.

NPR: Excerpt: 'Five Children and It'