看看这个英文句子有没有语法错误？

Rocket reaserch has confirmed a strange fact which had already been suspected that there is a high temperature belt in the atmosphere, of which the center is roughly thirty miles above the ground

which后的'S去掉.同位语THAT不能省,但在同位语中不做任何成分

which's center是错误的，可以改成WHOSE CENTER。

引导同位语从句时的联系词THAT不可以省。