短語詞組短語ball screw diameter 滾珠絲桿直徑ball lot diameter variation [機(jī)]球批直徑變動量variation of ball lot diameter 球批直徑變動量squashed ball diameter 壓扁球徑;方形切割deformed ball diameter 變形球徑;極微變形ball set bore diameter [機(jī)]球組內(nèi)徑ball pocket center diameter 球兜中心徑milling ball diameter 磨球直徑nominal ball diameter [機(jī)]球公稱直徑 返回 ball diameter