短語(yǔ)詞組短語(yǔ)le signe plus plus sign 加號(hào)plus or minus sign 正負(fù)號(hào);加號(hào)或減號(hào)plus -minus sign of electric current 電流正負(fù)號(hào)the plus sign 正號(hào)plus sign additive sign 符號(hào)為PLUS SIGN BELOW 下面帶有加號(hào)combined plus and minus sign 正負(fù)復(fù)合符號(hào) 返回 plus sign