单词 | principal focus |
释义 | principal focus 【物理学】主焦点[亦作 focal point] 以上来源于:《21世纪大英汉词典》 principal focusn.=focal point, 1详细释义源自:《新世纪英汉大词典》Collins外研社 n= focal pointprincipal focus‘光’主焦点principal focus主焦点principal focus主焦距principal focusn.(名詞 noun)【理】焦點(= focal point)principal focu |
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