diameters直径
diametern.直径
diameter of front pilot首飞行器直径
diameter of belt pulley皮带轮直径
diameter of inject hole引射孔孔径
diameter at smaller end细端直
diameter of first tooth首齿直径
diameter of bottle Mouth瓶口直径
Diameter of muscle fiher肌纤维直径
Diameter class structure径级结构
diameter of frozen pipes冻结管直径
diameter at ground level地径