Daily glass of milk can reduce bowel cancer risk, study reveals 研究显示每天喝一杯 ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
白炭黑与硅橡胶硬度的关系理解复合材料中关键性质的相互影响
白炭黑与硅橡胶硬度之间存在一定的相关性。白炭黑作为硅橡胶的填充剂，可以增加材料的体积，并通过物理交联作用增强硬度。随着白炭黑含量的增加，硬度也会相应增加，但存在一个饱和阈值。交联密度和硫化剂种类也会对硬度产生影响。了解白炭黑与硅橡胶硬度的关系，有助于 ...
Most rainforests too degraded to provide good habitats 多数雨林退化严重而无法为 ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.