The critical rotational speed of multipleplate structure is up to one time higher than that of general structure.
与普通结构比较,多层结构的允许转速提高一倍多。
2
Marey invented a technique called "chronophotography" that captured the stages of movement on a single photographic plate, with multiple exposures per second so that the moving figures overlap.
Marching to the capacity of the battery, multiple parallel plate separation, positive and negative horizontal welding into positive and negative plate group.