In this system, the NC code editor is convenient for the user to programming; the NC program checker and interpreter is used to solve the computer identifying and analysis problem of the NC code; and the simulation module realize the 3D simulation of the NC turning.

At present there are many problems unsolved on theory of criminal proof in investigative procedure in China,such as the conception of criminal proof,the difference between criminal proof and facts-ascertaining,the necessity of adoption of the warrantism and Writ of Habeas Corpus system,the construction of the investigative institution s burden of proof and standard of proof and so on.

The efficacy of criminal investigation cannot be achieved without public participation,but the investigative procedure is carried on secretly over long years.

To fulfil a good practice of investigative procedure,focusing on the intent of investigation is the first thing to do.

Discussion on the design method of the undetermined address deviation quantity in the program for searching tables;

Right to defense is very important defensive right for criminal suspect in the procedure of investigation.

In this article, it is suggested that the system of right protection in the procedure of investigation should be established conform to the rules of procedure and the principle of due process.