Quantity Safety Distance什么意思

Your Keying Is Defective (Radiotelegraphy)你有瑕疵(Radiotelegraphy输入) Quality Standard Deviation质量标准的背离 Quality System Database质量系统的数据库 Quality Services Division (Oak Ridge National Laboratory)优质的服务(橡树岭国立实验所) Quarter Square Degree四平方的程度 Quantity Safety Distance质量安全距离 Quality Systems Division品质系统事业部 Quality Support Division质量支持分裂 Quitman School DistrictQuitman校区 Is my keying defective?是我的键控缺陷吗? Quality System Design质量系统的设计 Quincy School District昆西校区 Quality System Designs质量系统的设计 Quality Systems Development质量体系的发展 Quality Software Development质量软件的开发