The article elaborated on the principle of the anchor bar support,analyzed supporting effect of driection and support parameter of anchor bar,in the field of changing state adjoining rock strained condition,flexure stress of reinforcing and reducing rock beam.

Through simulating these cases above,the influencing degree of supporting parameters of supporting system on the supporting effect is researched by analyzing the changes of axial supp.

The assessment criterion of supporting effect of deep foundation pits is complicated and fuzzy.

Investigation on Protective effect on Occupational Hazards in Nickel-cadmium Battery Industry

To investigate the protective effects of two kinds of protective methods for tank crew against antitank armor piercing.

The experiment results indicated that DSRO-440 reverse osmosis membrane -specific bactericide at low concentrations and under conditions of low-dose of reverse osmosis membrane system has a good protective effect of sterilization.

Anticorrosion measures and protection effect of steel gate,main transformer,and gantry crane in Yantan hydropower station are introduced.

Evaluation of protective efficacy of recombinant subunit vaccine against PCP and its immunologic mechanisms;