短語詞組短語spindle bottom journal diameter 心軸下軸頸直徑bottom cone diameter 底流口直徑bottom m diameter 底徑Bottom -diameter 根端直徑bottom diameter of thread 螺紋底徑Bottom diameter progressive increment 底徑遞增量socket bottom diameter 插口底直徑calculation for bottom diameter 底孔直徑計(jì)算Paper bucket bottom diameter 紙桶底徑 返回 bottom diameter