准线 Save Sign in to save words Traditional (Taiwan): 準線 zhǔnxiàn ㄓㄨㄣˇ ㄒㄧㄢˋ directrix line of a parabola guide line Character by character 准(zhǔn)allow 线(xiàn)thread Words that sound like zhǔnxiàn 中线 忠县 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0