切向光線聚點(diǎn)ray: n. 【動(dòng)物;動(dòng)物學(xué)】(短鼻)鷂魚 〔cf. skate ...focus: n. (pl. focuses, foci ) 1.【物 ...tangential focus: 切向焦點(diǎn); 正切焦點(diǎn)tangential ray: 切向光線; 切向射線tangential close ray tracing: 切向閉合光線跟蹤下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯