常見例句The Clinical Application and Modification of the Quad Helix Appliance 四圈擴(kuò)弓簧的臨牀應(yīng)用及改良設(shè)計Some biological molecules have the form of a helix. 有些生物分子呈螺鏇狀。quad helix 四級螺鏇線Having a shape approximating that of a helix. 近似螺鏇形的，近似螺鏇線的Cadets forming up in the barracks quad. 軍隊學(xué)員在軍營的院子裡排著隊An IP address whose last quad is 0. 最後一格爲(wèi)0的IP地址。 返回 quad-helix