chech

Precision Chech and Maintenance of the Main Axle Structure of Machine Tool

机床主轴结构精度检验及维修方法的探索

Xi Shan mine engineering quality chech and supervise look back

西山矿区工程质量监督工作回顾

Industrial tests and analytic chech are carried out for the test product by using XRD , physical and chemical analysis etc.

组织了工业性试验；利用XRD、物理、化学分析等手段对试验产品进行了分析检测。

About the Chech on the Piano Students in Music Conservatories

谈音乐院校钢琴专业学生的考核问题

Besides these , you should also chech ill atomization caused by blocking or wearing and tearing and keep proper cooling water mild washing air filter .

此外还应检查喷油嘴有无堵塞和磨损而引起的雾化不良，并保持适当的冷却水温和清洁空气滤清器。

Serve as a practical example , on the basis of analyzing the error of current transformer the selection of current transformer for main motor in the hydrogen compressor was given , the chech was carried out and some improvements were made .

作为一个实例，在分析电流互感器的误差的基础上，给出了氢压机主电动机用互流互感器的选用方案，并在进行了二次负载校验后，对该方案进行了改进。