real time and multitask

• 实时多任务

real time and multitask的用法和样例：

例句

1. The multitasking of RTOS not only meets the real time requirement of the embedded system but also simplifies the design process and makes it easier to expand the system.
   实时操作系统的实时多任务机制不仅能使应用系统满足实时性要求，而且简化了系统的开发设计过程，方便了系统扩展。