Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/5c15d012afbd9d01d5b26b2d94f81b78.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 ball-bearing with taper bore是什么意思，ball-bearing with taper bore的翻译，ball-bearing with taper bore音标、读音、用法和例句_绍翊字体网有道词典
The basic design self-aligning ball bearing is available with a cylindrical bore or, in certain size ranges, with a tapered bore (taper 1:12). 自调心球轴承的基本设计带有一圆柱孔，或者在某些尺寸范围内带一圆锥孔（圆锥1：12）。