The selection of exhaust recovery control criterion has been analyzed theoretically,and a mensurable and managable criterion of the exhaust recovery system for pneumatic cylinders is given in this paper.

As for the problem of the management of invite public bidding of military academic material stock,this paper analyses the characters of public bidding of military academic material stock,researches the model of negotiation mechanism based on bargain.

Negotiation mechanism is applied to coordinate all the solutions.

The many -to-many negotiation support system With Facilitator, which combines the Internet technology and the many-to-many negotiation mechanism together brings a new business model.

Precedent and rationality——plead for the judicial precedent system of China;

On Some Questions of Precedent System of the Private International Law in China;

The scholars have discussed the precedent system for a long time.

The Foundation of the Case Guiding System In China——Compared with Foreign Case System;

This thesis seeks to analyze the present legal system in China and summarizes the necessity in constructing a logical case system through surveying the development of case system in China,starting from the concept of case law and its advantages in the system of law.