使一个物理物体上产生变形的力。
答：这个则属于物理学和对重返地球物体的了解方面的问题了。
A: It's a matter of physics and knowing the reentering object.
但你们可能也在物理学中见过了，就是求一个给定物体的重心？
But one that you might have seen in physics, we care about maybe where is the center of mass of a given object?
这个则属于物理学和对重返地球物体的了解方面的问题了。
与物体表面亮度的主观感觉相对应的客观物理性质。
The objective physical property corresponding to the subjective sensation of the brightness of a surface.
在现代物理学中，黑洞是最错综复杂的物体之一。
Black holes are among the most intriguing objects in modern physics.
物理量来描述一个物体的特征。
We often use physical quantity to describe the features of an object.
真实的背后就是物理，物理描述了物体如何运动以及它们之间如何相互影响。
Behind the reality is physics, which describes how objects move and interaction with each other.
真实的背后就是物理，物理描述了物体如何运动以及它们之间如何相互影响。
Behind the reality is physics, which describes how objects move and interaction with each other.
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