关于科技,太空,宇航员的一些英文资料重点还是太空,宇航员生活,英语课要用的,要英文的.

关于科技,太空,宇航员的一些英文资料重点还是太空,宇航员生活,英语课要用的,要英文的.
关于科技,太空,宇航员的一些英文资料
重点还是太空,宇航员生活,英语课要用的,要英文的.

关于科技,太空,宇航员的一些英文资料重点还是太空,宇航员生活,英语课要用的,要英文的.
Eat -- the easiest becomes complex wonderful
Eat and drink for earthlings, is an even more commonplace, but in zero gravity space life, astronauts diet has become very complex and special wonderful. Can say, astronauts nutritional needs, food preparation, supply and their eating patterns to wait to have certain speciality, and in the ground life diet are quite different.
Space food essentially with ground ordinary food is same, all is for the human body to provide energy and nutrition. But in order to save the shuttle's space and launch payload, astronauts carrying space food should as far as possible light weight, small volume. Such as nutrition good drying biscuits and drying sausage, eat when use bubble, can return to a similar taste with fresh food. Space food besides wanting to be able to withstand space special environment factors, such as shock, vibration, gyartasa test without failure outside, still must for astronauts in weightlessness conditions the index of physiology change on dietary nutrients, adjust, such as muscle atrophy requires food must provide plenty of high-quality protein. Bone loss is required food provided enough calcium to ?
Astronauts in flight activities in how to eat, for them is a big test. In weightlessness conditions, a cup of filled with water cup downwards towards put all the same, the glass of water will not be floating or fell out and, if on the table, the glass will run up along with water. Say so, astronauts on the ground of the original eat and drink habit to space is completely not applicable. Generally speaking, all kinds of food, parts, such as appliance are fixed well. The astronauts took food from food cupboard after, to put a pack of composite plastic bag food cut open a small mouth, the forks and chopsticks into his pocket fork with to pick-mouth delivery. In order to prevent food everywhere, personal influence clastic astronauts or equipment normal work of ?, this kind of food