The diagrams for common troubles in press mounting curves for bearings are given, and they are described briefly.

Utilizing computer to protract installation curve of overhead line;

A study was made on researching the effect of hot-pressing parameter to vertical density profiles of fiberboard and analyzing the relationship between hot-pressing time,pressure and the vertical density profiles with the specific hot pressing curve.

The compaction curve of mud formation may reflect the law of hydrocarbon migration,and the poorly-compacted interval of mudformation usually corresponds to low ve.

The results obtained from the compactional studies by means of the microscope observation of sections,a compaction curve of porosity vs depth and the simulating experiments of carbonate rocks in Ordos basin at high-temperature and-pressure suggest the compaction,especially mechanical compaction exists in the carbonate rocks.

Unsteady-state filtration for condensate oil-gas flowand drawdown curves;

Unsteady testing for oil and gas well includes testing of drawdown curve and build-up curve.