论文部分内容阅读
三、太空农业的生产特点 (一)太空农业的环境特点 1.微重力环境。微重力环境的主要特征表现在:由浮力推动的对流减小,沉淀现象消失;表面张力大于重力;将有可能进行“无容器”加工。在微重力环境下,较热的和较小密度的流体将不会浮在较冷的和较大密度的流体上面,即分层现象消失,这样就可以减少不必要的混合,防止沉淀现象,从而可以使由分离过程产生的产品具有较好的离析度。 2.空间辐射。空间辐射的主要
Third, the characteristics of space agriculture (a) the characteristics of space agriculture environment 1. Microgravity environment. The main features of the microgravity environment are manifested in the reduction of convection by buoyancy, the disappearance of sedimentation, the greater surface tension than gravity and the possible “vessel-less” processing. In the microgravity environment, hotter and less dense fluids will not float on colder and more dense fluids, ie the delamination will disappear, thus reducing unnecessary mixing and preventing sedimentation, So that the product resulting from the separation process can have a better degree of resolution. 2. Space radiation. The main radiation space