Arcak阿尔贾克
arcn.弧;弧形物vi.形成电弧;按弧形轨迹行进
arcs of mandibular closure下颌闭合弧
arclength parameterization弧长参数
arccotangent trigonometric反三角余切
arcus volaris superficialis掌浅弓
arc-shape cutting machine弧形切割机床
arc-extinguishing plastic灭弧性塑料
arcus vensus dorsalis pedis足背静脉弓
arcus parieto-occipitalis[医] 顶枕弓