电子数据交换系统是指企业间利用通信网络和终端设备以在线连接方式进行订货作业和订货信息交换的系统。
发展的连续性
You are trying to change the polling parameters used by the location manager via the Cisco WCS，and your request is being denied. What is wrong？（） ["Polling values can be changed only in the maintenance window.","Polling values can be changed only on the location server.","Your login does not have the correct permissions.","You must wait for the location server to become available."]
爆放炮后必须至少等（）分钟，放炮员和班组长才可进入工作面检查拒爆、残爆、顶板等情况。 ["15","5","10"]
就车检查减振器时，用手触摸减振器，当温度不高于气温时，表示减振器效能正常。
平衡分配系数
