背反射x-射线检验back: n. 1.背,背部;背脊;背面,反面;背后,后部,后面, ...x: vt. (x-ed, x'd x-ing, x'ing) ...ray: n. 【动物;动物学】(短鼻)鹞鱼 〔cf. skate ...examination: n. 1.考试 (in). 2.(问题等的)检讨,考察; ...back reffection x-ray examination: 背反射x-射线检验下载手机词典可随时随地查词查翻译