By analysis of the grinding principle of peach and machining characteristics of camshaft itself, combining with practical production, this paper adopts new equipment and perfect techniques to make a breakthrough in key points of camshaft, It expounds related factors of excess error of camshaft lift and its solutions in machining methods and standard cam fixing.

The system include Valvetronic mechanism and VANOS mechanism, it continually adjusts valve timing and lift in a dimension.

The system includes Valvetronic mechanism and VANOS mechanism,which can continually adjust valve timing and lift in a dimension.

The effects of temperature programmed removal of amine on the surface acidity of zeolite β;

The temperature programmed test of the coal sample taken from Dafosi coal mine is carried through,and determinate the temperature change of coal sample,the concentration change of CO,CH4,etc and the limit parameters,such as critical temperature,cracking temperature,etc.

In this paper,the main theoretical analysis for temperature programmed reduction has been studied.

The ethyl esters acquire excellent resolution with temperature programming and are determined with internal standard method by GC-9790 ch.

Molybdenum carbide was prepared with n-hexane as carbon source by temperature programming method.

The content of styrenated phenol was determined by using Capillary Gas Chromatography(CGC), combining efficient column of OV-101,sample inlet splitter, and controlled temperature programming.

This paper used MAFU stove to program ascend temperature to Dongrong mine's coal samples, and determined their oxygen consumption velocity under the different coal temperature.

Study on the heating procedure for atomic absorption spectrum method with Z-5000 graphite furnace to measure trace gold;