k层x射线k: K, k (pl. Ks, K's; ks, ...shell: n. (pl. shells,2 义为 shell) 1 ...x: vt. (x-ed, x'd x-ing, x'ing) ...ray: n. 【动物;动物学】(短鼻)鹞鱼 〔cf. skate ...k-shall x-ray: k层x线下载手机词典可随时随地查词查翻译