已经做出假设 在某种程度上取决 对什么的研究 其他两个 另外四个 世界先进水平 长/宽为2m A的..没有B那么低 A的数值和B相同 在2-3Hz范围内 代表/说明了
The assumption has been made that Depend to some extent on Research on sth. Two other；four additional the advanced world level Has a length/width/speed of 2meters(per) A does not have as low a n. as B A has the same magnitude as B over the range of 2 to 3Hz Is a representation /an illustration of
