The turning movement of four wheel driving engineering machine is analyzed.

Reconstruction and application of painting line for small workpiece of engineering machine;

Oil contamination control of hydraulic system of engineering machine;

Study on synthetically decision-making model for engineering machine s run state;

Prediction of cab noise of construction machinery by statistical energy analysis;

A Study of the Swift Contamination Detectorfor Construction Machinery Hydraulic System;

Situation of hydraulic system power matching and control in construction machinery;

On maintenance of hydraulic system of engineering machinery;

Considerations on engineering machinery management and maintenance;

Use and maintenance of engineering machinery hydraulic system;

Application of 3D GPS control technology in construction machine;

Analysis and Improvement of Lubrication System of Engine on Construction Machine Opertaing on Slope;

Design on construction machine hydraulic testing and control system;

Development and management of information system for construction equipment;

Analysis of Hydraulic Driving System of Construction Equipment Chassis(1);

According to the compound service construction equipment,which has focus on utilization of productivity and engine power,not on working quality,a hydraulic system control strategy based on DA control theory is presented.