Need no vacuum to keep running.
无需真空保持运行。
No vacuum or picture tubes were broken.
真空管或显影管都未破碎。
Requirement: semi automatic, no gas filling, no vacuum, just sealing only.
要求:半自动,无气体填充,无真空,只封口。
Yes,we have indeed a certain timetable for (U.S.) withdrawal from the population centers, from the city-centers, but we are doing our utmost and we are coordinating very closely with the multinational forces to ensure there is no vacuum,".
VOA: standard.2009.04.25
well since the gas is expanding into vacuum no work is done.
因为气体是向真空膨胀,因此这个过程不做功。
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