The actualities of ferrous charges consumption in converter steel-making plant at Liangang were introduced.

In order to reduce the loss of iron by blowing and the cost of ferrous charges consumption, increase the economical benefits, measures such as optimizing the raw feeding material structure, improving blowing process, implementing the less-slag operation etc.

This present paper through deduce the expression of ferrous charges consumption in theory,indicatetre target-aims on economical and technical interrelated with practice,and indicate the measures on decrease the ferrous charges consumption from the converter and continue-cast manufacture in First Steelmaking plant of Hangang Co.

In this papers introduces that some new technology and management way used in a practice of the decreasing hot iron consumption at the LD's steelmaking plant of the xianggang.

Experiences in decreasing the raw material consumption in the production of chloroacetic acid;

Several aspects of this two processes were compared respectively, such as the material consumption, cost estimation, process properties, economic benefits and social effects, etc.

This article analyzes the present conditions of fuel consumption of local vehicles in the view of existing problems,and put forward some measures for economizing fuel with practical experience.

Fuel consumption for a series of lunar probe engines with different thrust weight ratios and specific impulses is simulated based on above two techniques.