常見例句Neutral reaction by litmus indicating paper. 石蕊試紙呈中性反應(yīng)。indicator paper of neutral thymol phthalein 中性麝香草酚酞試紙indicator paper of phenol phthalein 酚酞試紙indicator paper -reflecting apparatus method 試紙-反射儀法His sooty hand smudged the paper. 他被煤煙熏污的手把紙弄臟了。All its stock in trade is glossy paper backs. 該店的全部現(xiàn)貨是光面的平裝書。 返回 indicator-paper