理学 操作系统 释 operating system 操作系统 计算机中管理和控制硬/软件资源的系统软件，向程序和用户提供系统服务，使用户方便地使用计算机，使计算机系统高效地运行。
operating system 操作系统
系统软件 操作系统 释文 operating system, OS 操作系统
- Credit evaluation system
- credit expansion
- credit files management
- Credit information
- credit information
- credit information platform for water conservancy construction market
- credit investigation
- credit investigation system
- credit life insurance
- Credit limit
- credit management
- Credit Mobilier Scandal
- credit money
- credit order
- creditor's revocation
- credit policy
- Credit Rating
- credit rating
- credit rating transfer matrix
- credit rationing
- credit reporting
- credit risk of insurance company
- creditservice
- Credit Standard
- credit system