By measuring the motion of the galaxies in a cluster, astronomers can infer the cluster's mass.通过测量星系在一个星系团内的运动,天文学家们可以推定这个星系团的质量。What do you infer from the voting figures?你从选举数字中可以推出什么结论 呢 ?We may infer from Morris...
Humming bird beats his wings almost 100 times per second.蜂鸟每秒钟拍动翅膀近100次.Bird's body size, there is also a small humming bird ostrich.鸟的体型大小不一, 既有很小的蜂鸟也有巨大的鸵鸟.This is a humming - bird moth.这是蜂鸟科的天蛾....
Purpose To study the clinicopathology, immunohistochemical characteristic and prognosis of subependymal giant cell astrocytoma ( SEGA ).目的:探讨室管膜下巨细胞星形细胞瘤 ( SEGA ) 的临床病理 、 免疫组化特点及预后....