现场设备层的安全防护。
该系统包括FMS控制层、单元控制层、设备控制层三层结构。
The system is composed of FMS control floor, unit control floor, and equipment control floor.
这是收集层波分复用设备非常重要的要求。
This is a collection of very important layer WDM equipment requirements.
最常用的2层设备是什么？
但在一些以小型手持设备为终端的自组网应用系统中物理层无法提供载波感知。
But the physics layer of some small hand-hold equipments can not provide carrier sense.
层 储藏、设备用房，顶层设有水箱间。
Underground storage layer, equipment space, between the top with water.
层 储藏、设备用房，顶层设有水箱间。
Underground storage layer, equipment space, between the top with water.
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