positive electricity
2.The FISPS indicated that photoelectric property increased with the adding positive electricity field , and the biggest strength could reach 50 ~ 60 times.
3.The kind of polymerization is sheepshank, the type of MD chain is linear ,the host chain contains many positive electricity group and positive degree is 100%, and the branch chain contains the hydrophilic group. The mol ratio of ECH and DMA is 1, it reacts 5-6h in 60℃.
4.Aiming at shrinking pathway of hole that was made for expanding of stratum in water,using for reference of positive electricity glue MMH mud system,on the base of indoor examination,favorable effect was acquired in field examination.
5.This spirit, like all life in the entire universe, is produced by the union of the male, active, positive or yang principle, and the female, passive, negative or yin principle which is really no more than a lucky, shrewd guess at positive and negative electricity.
6.An apparatus for generating static electricity, consisting of a hard rubber disk that is given a negative charge by friction and a metal plate that is given a net positive charge by induction when in contact with the disk.
7.A catch with machine and release with electricity quartz speed requlator can convert frequency signals of quartz resonator, through CMOS IC,into narrow pulse signals in positive and negative in-tervval to drive pendular motor and through escapement control train and barrel arbor or working axis to rotate uniformly.
