Conventional dormitories or residence halls may be either restricted to one sex or coeducational , with certain floors or areas within them assigned to men or women.
Adsorbable gases can be separated by porous ceramic membranes under the capillary condensation mechanism of membrane separation, on which prior study was only limited to pure components.
Supergravity strengthens mass transfer process by using strong centrifuge field instead of gravity field, which has gained wide attention at home and abroad since it came out last century.
Not only eye's health, and is restricted in the normal vision and the color discrimination and the scotopia, moreover also includes often the stereo perception which is neglected by the human.