Warning: file_put_contents(/www/wwwroot/ppbbbu/5356789.com/cache/26d9df58144f045195c546362d252f8e.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/5356789.com/index.php on line 55 parallelity是什么意思,parallelity的翻译,parallelity音标、读音、用法和例句_零六五六深蓝词典
In view of the requirements of the verticality and parallelity in the process of equipping elevator for high building, a new laser collimating system is presented. 针对高层建筑电梯安装过程中导轨垂直度与平行度的要求,设计了一种新型的激光准直系统。