The paper introduces the measures,such as decreasing recycle ratio,shortening coke-forming time,and rasing outlet temperature of oven to improve the severity of delay-coking unit.

Pressure vessel design and several measures taken in order to reduce stress concentration during design and fabricating;

The methods to reduce the content of free formaldehyde in particle board;

Ways of project cost analyze and reduce project cost;

Electrical technology for power consumption reduction in chlor-alkali industry;

Simple discussion on the methods for reduction of fluoride consumption in Al-smelting process;

Measure on power reduction for metal anodes electrolysis section;

Analysis on reason of caustic soda concentration abrupt decrease in electrolyzer in late period;

Effective methods to decrease carbide consumption in PVC production;

The ways to decrease cost in coal preparation;

The Countermeasures of Decreasing Temperature Rise of Motors in Process of Manufacture;

Why Their Interest in Learning Chinese Is Decreasing——A case study of junior middle school students;

Four methods including decreasing the naphtha endpoint, hydrotreating part of the top recycle oil from the fractionation tower, upgrading the naphtha having low sulfur content in the riser and adding gasoline sulfur reducing additive were applied.

Some New Techniques for Reducing the Emission of Automobile’s Diesel Engine;

Study of Reducing the Cost in Feed of Layers;

The methods for reducing the sizing cost of common fabric are introduced.