This article introduced the new research results of iron chip internal electrolysis process a-broad, described correlative engineering examples and effect for industrial wastewater treatment in China based on the introduction to action mechanism of the process , and pointed out the problems , counter-measures and development trends of the process.

This article analyzes different "anchoring lengths of steel anchor bolts"chosen from "Design Handbook",according to the calculation principles of "The Design Specifications"in effect through engineering example,presents concrete suggestions,and can be used for reference in design.

The design method of ground-source heat pump system is introduced with an engineering example.

And the functions of real-time monitoring, long-range controlling, accident alarm, failure analysis, and so on can be carried out together with project case.

Through the project cases the application of steel tube pile in composite foundation is introduced and the mchanism is discussed.

Through the project case, this article fully display the utilization of the curve method of the funds accumulative in project, provides the basis for the engineering project management decision.

Connecting with an engineering case, this paper analyzes the optimized design of the foundation pit, and points out that only understanding fully the plus factors and negative factors can reach the goal of optimized design.