permutation symbol排列: arrange; rank; place; range; ...符號(hào): character; sign; symbol; mar ...代數(shù)排列符號(hào)語(yǔ)言: algebraically oriented language散列符號(hào): hash mark散列符號(hào)表: hashed symbol table下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯