作业系统 Operating System ; PLC ; OS
视窗作业系统 Windows
作业管理系统 Job Management System ; Operations Integrity Management System ; production and operation management system ; operating management system
即时作业系统 RTOS ; Real-time OS ; real-time operating system
社区企业操作系统 CentOS ; community enterprise operating system ; CentOS Community Enterprise Operating System
云端作业系统 cloud OS
网路作业系统 Network Operating System ; Network OS ; NOS
系统作业 rendszerfeladat ; system job ; systemuppgift
行动作业系统 mobile OS
远程批作业系统 RBS RemoteBatchSystem ; remote batch system
在直梯上作业出现上述情况时，必须系安全带，同时主管和员工必须考虑其它保护措施(如果有的话)。
If the above situation exists when working on a straight ladder, a safety harness must be worn and team leader and employee must agree on additional precautions (if any).
本课程系针对大学本科学生而设。课程包括了完整的阅读资料清单，作业与课末测验。
This course is designed for undergraduate students. It features a complete reading list, assignments, and final exam.
实践证明，本方法不仅可以减弱外界条件引起坐标系变化误差的影响，还可以进一步减弱仪器误差，提高作业效率。
The practice shows that this method not only may decrease reference frame error caused outside condition but also weaken errors of theodolite and improve efficiency.
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