词汇	base course materials
释义	base course materials 基层材料
随便看	double balance Gilbert double balance method double balance modulation system double balance modulator double balance of payments surplus double balance shaft double-balancing bridge double ball bar double-ball-bar Double-ball-bar double-ball coordinate system double-ballon endoscope double-balloon and trlple-channel catheter double balloon catheter Double balloon-catheter Double balloon endoscopy Double-balloon endoscopy double-balloon entemscopy double-balloon enteroscop Double balloon enteroscopy Double-balloon enteroscopy Double-balloon enteroseopy double-balloon push enteroscopy double balloon triplelumen catheter double-balloon triplelumen catheter