为键不安全的内核进程自动地固定上下文堆栈。
The context stack is automatically pinned for key-unsafe kernel processes.
如果你正在接听固定电话来电，那么只要按保留键，就可以同时接听手机来电。
If you're chatting on a landline call, you can answer an incoming cellphone call by placing the landline call on hold.
在壳体上安装齿轮箱，确保齿轮箱轴键妥当地固定在耦合键槽中。
Mount gearbox on housing, assuring that coup ling key slot accepts gearbox shaft key properly.
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