通过调节偏振控制器的状态，可以实现对波长振荡个数和波长间隔的控制。
The number of lasing wavelength and wavelength spaces can be controlled by changing the state of polarization controller.
其内部主要由DMA控制器(82c37)、中断控制器(82c59)、可编程间隔计时器(82c54)，DRAM刷新控制器，等待状态产生器，系统重置电路组成。
It is mainly composed of DMA controller (82c37), interrupt controller (82c59), programmable interval timers (82c54), DRAM refresh control, wait state generator and system reset logic.
控制器可以识别的时间间隔与地震事件关联，控制器操作开关锁定在地震事件的传感器开始。
A controller can identify a time interval correlating with a seismic event, and the controller operates the switch to lock the sensor before the seismic event begins.
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