字典網>> 英漢字典>> T開頭詞條>>three index symbol的意思 漢英字典three index symbol中文翻譯：【計】 三下標符號相關詞條：three-plus-one address three-level switch three-phase system three stages fluidized-bed dryer three start screw three shot repeater fuse three times a day three-way connection three-electron bond three-dimensional graph