Futhermor the relationship of Xd, Xq and E 0 with constant - torque and contant - power operation are analyzed.分析了电机关键参数Xd 、 Xq 和E0对系统运行性能的影响.XD - JB 1.1 style is non - automatic - controlled piston glue pump.1型属于它控式活塞胶水...
鱼类的鳃与陆上动物的肺类似.The gills of fishes are analogous to the lungs in terrestrial animals.鱼用鳃吸氧气.Fish take in oxygen through their gills.鱼和蝌蚪都有鳃.Both fish and tadpoles have gills....
Other party-goers rescued the injured man from his assailant.其他参加聚会的人把这名伤者从行凶者手中救了出来。Helicopters rescued nearly 20 people from the roof of the burning building.直升机从失火大楼的楼顶救出了将近20人。The shipwrecked couple were rescued by t...