gunshot mandibular defect下颌: lower jaw; underjaw; submaxi ...枪伤: bullet wound; gunshot wound下颌骨缺损: mandibular defect下颌骨发育缺损: development bone defect of mandible下颌骨缺损的修复: prostheses for mandibular defects下载手机词典可随时随地查词查翻译