平均: average; mean直径: diameter; diam与: take part in; participate in厚度: thickness; land比值: specific value; ratio半径与厚度比: radius-thickness ratioΦ平均直径: phi mean diameter根平均直径: average root diameter平均直径: average diameter; mazarine blueroyal blue mean diameter; mea ize; mean size; mean spring diameter; mean-diameter; mid diameter; mid-diameter; pitch diameter球平均直径: mean diameter of a ball线平均直径: linear mean diameter宽度与厚度的比值: width-to-thickness ratio表面平均直径: surface mean diameter二次平均直径: mean diameter簧圈平均直径: mean coil diameter晶粒平均直径: average grain diameter颗粒平均直径: mass mean diameter批量平均直径: lot mean diameter沙得平均直径: sauter mean diameter树冠平均直径: crown mean diameter算术平均直径: arithmetic mean diameter体积平均直径: volume mean diameter纤维平均直径: average fiber diameter; average fibre diameter线性平均直径: linear mean diameter叶片平均直径: mean blade diameter
