It mainly introduced the algorithm based on the carrier point gas velocity by listing all of the equations,and showed the result of calculation based on the same process conditions under the circumstances of 30 different packing varieties and specifications.

For characterizing non-newtonian fluid flow and heat transfer in mechanically agitated gasliquid vessells, the dimensionless group relationships are proposed on completely gas dispersed area (loading point ).

Direct to loading coal at transpersite can increase amount of dust density,and cause serious influence to the workers' health and safety of factory,expounds the mechanism of dust separating out and the harm of the dust,and combined with the present dust controlling technology in coal preparation plant at home and abroad,makes some comprehensive discussion of effective administration of the dust.

Because of having certain drop height, a mass of fugitive dust is created in the transpersite, re.

Analysis of flow rate and polished rod load for hydraulic feedback hollow sucker rod pump;

Effect of centralizer on polished rod load for polymer flooding artificial lift wells;

Mathematical simulation for calculation chart of polished rod load in beam pumping unit

Discussion on adaptability of point load test of rocks;

In order that irregular rock pieces could be used at the site to test the point load strength of rockthe laboratory and the in-situ contrastive testing and analysis are conducted.

The writers put forward a new method: collecting some fresh irregular rock piece from the rock bed, the height, length and width of which are accoring accordance with certiai certain regulation, testing them on a point load apparatus at the workplace directly, and processing the data to find the point load strengh of ro.

By solving load-constant,this paper presents equivalent nodal load of several applied-loads on parabolic wedge-shaped beam with rectangular section in cross-beam structures.