The large quantitystatistics data express, the efficiency of motor is not accordant with the data that are marked in the data plate.
大量统计数据表明，电机即使在额定状态下运行，效率也与铭牌标出的额定效率不一致。
2
Pessen does present a quantity of examples, together with some refreshingly intelligible statistics, to establish the existence of an inordinately wealthy class.
It should be pointed out that the results of mathematical statistics have a certain representation, but it is restricted by the quantity and quality of samples.