[數(shù)學(xué)] point of contact; point of tangency互切點(diǎn): tacnode會(huì)切點(diǎn): cusp交切點(diǎn): intersection; meet剖切點(diǎn): cut point切點(diǎn)弦: chord at contact; chord of contact下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯