This text briefly introduces the domestic status of rockbolt non-destructive testing,chiefly discusses the principle of the testing, the application of the low strain reflected wave method in the rockbolt non-destructive testing,briefly introduces the creation of the standard rockbolt,testing,the basic principle and method of analyzing anchor man pole blemish.

The Theory and Application of Benchmarking in Business Process Reengineering;

After analyzing the prospect of benchmarking in highway quality control,the paper mainly probes into enterprises benchmarking strategies and internal and external benchmarking methods in the selection phase of benchmarking and points out some key issues needing attention in the process.

This paper sums up the concept and origin of the theory of benchmarking, introduces five stages of the development of the theory of benchmarking, expounds the types of the benchmarking and the optimum flow of carrying out the benchmarking, and puts forward some problems needing attention in carrying out the benchmarking.