Solution to oil leakage of the electrie valve autuator;

Comprehensive tackling of oil leakage in oil catch of steam turbine bearing;

The HP oil pipes,with great length,a large number of joints and high rated oil pressure,often break off and experience oil leakage at joints,which impacts the normal running of the circuit breaker.

It is mainly concerned the modification of Composition B to control exudation, restrain irreversible size growth, enhance mechanical properties and decrease sensitivity.

Treatment of oil seepage of servomotor of hydro-generating unit No.1 of Xiaoshan Hydropower Station;

The oil seepage of electric actuator to valve directly influences the quality of the electric actuator.

An investigation is made into the oil seepage problem of circuit breaker operating mechanism in 220 kV gas-insulated metal-enclosed switchgears of a substation before the operation commencement of its spare line bays.

In the paper,comprehensive and deep analysis is performed on oil leak of main transformer caused by Component production technology,material of seal pad,assembling and installation technique,seal inspection method,cheak and maintenance,etc.

A new method of measuring starting pressure for low permeability reservoir;

Deep pumping by sucker rod in low permeability reservoir;

Using imbibition method to improve recovery efficiency of low permeability reservoir

The influence of ink penetration on color replication was analyzed from the ink penetration theory,penetration models,and experiments on the common paper and photo paper which have small color difference and optical quality difference.

The influences of different offset papers and printing processes on ink penetration depth were analyzed.

Under ink penetration condition,the theoretic model to predict color presentation of fluorescent halftone presswork was established.