维持力
1.The small sensor signature of an observer means that the drone does not have to drain its energy in order to maintain the field over long periods.
2.The control algorithms about DSU,Taper Head,Taper Tail are introduced to ensure flatness by maintaining steady rolling force.
3.Treated with anti microtubule drugs(amiprophos methyl APM), the effect of microtubules disassembly on the ultrastructure cold stability of cucumber young leaf cells was investigated by transmission electron microscope.
4.No propulsion occurs at this time although in the early phase of extraction momentum could be maintained.
5.the ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface.
6.We have a clean, highly professional and well-equipped police force that is committed to the maintenance of public order and continuous self-improvement.
7.Specific antibody could be detected in a week after injection immunization and increased continuously over 6 weeks period, with the highest of 1228.8 , the relative percentage survival (RPS) was 91.70%.
8.Data set of 1261 records of litter size, lamb survival, fertility, pregnancy maintenance and prolificacy from 668 Corriedale ewes and 1188 birth weight records of lambs were used to estimate genetic parameters.
9.Different inoculation routes could result in different immunologic potency and persistent time.
10.They hibernate during the winter cold; and their large litters help them maintain their population.
