Because of ventilating requirement of cross-ocean tunnel, especially long distance cross-ocean tunnel, ventilating shaft should be set in the sea.

长距离深海跨海沉管隧道，为满足隧道内运营通风的要求必须在隧道中部设置通风竖井。

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Just one more day figuring out a problem at the keyboard or under the ventilating hood, making another set of sales calls, teaching another roomful of people about the latest software upgrades.

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