砂岩和页岩单元是同时的.The sandstone and shale units are of the same age.恢复与治疗是同时的.Recovery was synchronous with therapy.同时的意思是在同一瞬间.Simultaneous means " at the same instant. "...

“同时的”的英语可以翻译为：coinstantaneous，simultaneous，synchronous ...