“同等的”的英语可以翻译为：coequal，coordinate，[医] equivalent，identical，coordinative ...

“等的”的英语可以翻译为：[化] uniform ...

到了较高等的动物, 收缩作用成为肌细胞的特有功能.In higher animals, contraction became the specialized function of muscle cells.接受更高等的教育总是没错.Higher education is always a good idea.本机具有设计独特、操作简便,出纸整齐, 速度高等的优点.The parent rolls which slitwidth are...

“相等的”的英语可以翻译为：equal，equivalent，[化] uniform，even，tantamount ...

“优等的”的英语可以翻译为：classy，excellent，[化] high-class，first-rate ...

“幂等的”的英语可以翻译为：idempotent ...