在首次载人航天以前甚至有专家担心失重条件下宇航员吞下的食物会卡在喉咙里…… 太空实验 航天食品的主要要求是安全和营养,当然也要轻巧、简便,适于失重条件使用。具体而言,在生物方面,应该安全、营养、可口、容易摄入和消化、不能引起任何卫生问题;在操作方面,要求分量轻、保证食品质量、食品易于准备、废弃物容易处理;在工程方面,必须经得住航天器的温度、压力、加速度和振动,耗水量小。 Even before the first manned space flight, there were even experts worried about the food swallowed by astronauts in the throat when they were under weight ... Space experiments Spaceflight food is the main requirement of safety and nutrition, of course, light and simple, suitable for use under conditions of weightlessness . In particular, biologically, it should be safe, nutritious, tasty, easily ingested and digestible, and should not cause any health problems. In terms of operation, light weight is required to ensure the quality of food, the food is easy to prepare and the waste is easy to handle. In terms of spacecraft, it must withstand the temperature, pressure, acceleration and vibration, water consumption is small.