Above factors contribute to plastic deformation,early abrasion,and fracture of the internal bevel gears.

The author introduces the causes and solutions to the early abrasion of the clutch with booster of a city bus.

The paper analyzes the electrolysis cell in detail to solve the problem of forepart dilapidation of 150kA cell,finds out the reason for the cell dilapidation and takes relevant measures based on the analysis so that better result is achieved.

Discussion of reasons which caused early damage in concrete road surface taking the example of a highway;

Analysis of Early Damage in Asphalt Pavement of Expressway;

Pointing to the problem of too much early damages and short service life occurred to 80KA small size prebaked anode pots dry digging test method was adopted to analyze the condition of pot shell, sidelining carbon blocks, artificial shelf in the pot, bottom carbon blocks, refractory layer of the damaged pots.

From material,construction and other aspects reasons caused early damage of asphalt concrete pavement of highway are analyzed,at the same time a series of preventive measures are proposed from pavement design,raw material,construction management and other aspects,in order to increase the quality of asphalt concrete pavement and prolong the service life of road.

Effect of subgrade on the early damage of expressway;

The main cause of early damage of the accumulator is analyzed, and corresponding prevention measures are put forward.

This paper introduces the representations of the early damage phenomena of the pavement,analyzes the reasons of the early damage phenomena of asphalt pavement,and puts forward some measures for preventing the early damage phenomena of asphalt pavement.

The early stage damages of simply-supported girder bridges with continuous slab-decks are due to many unresonable factors in design and construction.