A key concept of General Relativity is that gravity is no longer described by a gravitational "field" but rather it is supposed to be a distortion of space and time itself.
广义相对论的一个关键概念就是，不再用引力“场”来描述引力，而是用空间和时间本身的畸变来表述。
2
The very concept of black holes confuses our common sense notions of matter time and space.
正是黑洞这一观念使我们对物质、时间、空间等常识性概念产生混乱。
3
On the basis of analyzing time sequence concept, logic and application, puts forward the space sequence concept, applies the wavelet analysis on space sequence concept.