Through comparative analysis on the effects of common mine-used high-strength ring chain and hot-dip zinc chain adopted in 5210 coalface and 5208 coalface respectively in Wangzhuang Coal Mine,this paper proves that the application effect of hot-dip zinc chain is good,which can avoid effectively the chain rapture accident.

Results showed that the coating problem of hot-dip zinc plating workpiece was improved evidently by using the degassing agents MPP230 and MPP620 containing a primary component of polyethylene wax.

The article studied the soaking condition of soybean sprouts and its effect on the soybean sucked water rate and sprout rate.

A contrast experiment was conducted to study the effect of extraction conditions on the extration rates of ginsenoside,flavone and polysaccharide in fresh and dry Gynostemma pentaphyllum.