Laser-Blasted Metal Forms A Self-Cleaning Non-Stick Surface 金属随着岁月的流逝会失去原有光泽而受到锈蚀。人类一直寻找各种防止金属腐蚀方法,目前大量采用的是油漆涂覆、表面处理(如镀锌、镀铬)。激光轰击技术的出现势必对工业生产产生深刻影响。它 可让汽车船舶跑得更快,能让世界发展过程中有更好 ...
黑猩猩性攻击与人类性行为 Male Sexual Aggression: What Chimps Can Reveal About Peopl e 常炯编译 An aggressive male chimpanzee looks on from behind a bush. A 2014 study has found that male chimpanzees that are more aggress ...