求出
1.One can determine the corresponding parameters of Arps decline curve by using the parameters obtained.
4.The instantaneous frequency of seismic signal could be derived by Hil-bert transformation.
6.A method of timing accurate to millionths of a second is needed to find the distance of objects.
9.the equation′s bell solitary wave solution worked out by parameter hypothesis;
10.Potential function in gravitational field is solved through the equation and basic characteristics of gravitational field are studied.

