短语词组短語cycloid personality 環性人格;繙譯;循環性人格英語Cycloid reducer 擺線減速機cycloid type 繙譯;周期型common cycloid 普通擺線cycloid motor 擺線電動機;擺線馬達Cycloid hydrau 擺線液壓馬達標準cycloid ball 擺線鋼球cycloid length 擺長ordinary cycloid 擺線 返回 cycloid