基本物理学理论上，空气越稀薄情况下，任何物体的耐性都会减少，因此球路也会因海拔高度不同而有所变化。
It's the basic physics that the air is thinner and the resistance to any projectile is less so the flight path of the ball will be different at high altitude.
描述物体运动基本方法；描述质点运动基本物理量和运动方法；运动的叠加原理和相对运动。
Basic method to describe motion of body; basic physics quantities and method to describe the particle motion; the supposition principle of motion and relative motion.
蛋白质是生物体中必不可少的基本物质，在生物体的生命活动中起着重要的作用。
Protein is an essential material of organisms, it plays an important role in life activities.
蛋白质是生物体中必不可少的基本物质，在生物体的生命活动中起着重要的作用。
Protein is an essential material of organisms, it plays an important role in life activities.
应用推荐