The methane-methanol technology is a new clean method in ammonia synthesis,which decreases the consumption of effective hydrogen and can co-produce methanol.

The gas cleaning basic theory,process features and determination of pressure rating for methane-methanol technology were reviewed.

Transient liquid phase bonding of 45MnMoB steel geological drill pipe using two-step heating process;

Transient liquid phase bonding of T91 steel using two-step heating process;

The geological drill pipes of 45MnMoB were joined by transient liquid-phase(TLP) two-step heating bonding process using amorphous filler in argon atmosphere.

Based on this process of less methanol free of water , author also presented the idea of double zero process.

Application of TH—AADY in twice bottom fermentation technology of Luzhou-flavour liquor has the functions of anti-acid and anti-ester and supplement of yeast quantity which may make fermentation stable and promote fermentation effects on the basis of ensuring the liquor quality, and increase the liquor yield.

Design and Analysis of Switch-Mode Power Supply Based on Bipolar Process;

A high speed,wideband operational amplifier is presented in the paper,which is based on bipolar process.

The T/H circuit based on complementary bipolar process makes use of a fully differential architecture.

After a brief analysis of the advantages of polysilicon emitter bipolar transistors, a new technological process for the transistors is designed in this paper according to the bipolar technology available in our country, and the layout of a minimum size transistor is represented.