水密装置 water stop ; watertight fittings
数据保密装置 data privacy device
加密装置 encryption unit ; encryption device ; Encryption machines and supplies
通信保密装置 communication security device ; COMSEC
单通道加密装置 single channel encryption device
计算机加密装置 computer encryption device
中继加密装置 trunk encryption device
载波加密装置 carrier encryption equipment
话密装置 secure voice unit
异步数据加密装置 asynchronous data encryption device
介绍迷宫环封密装置在吸口侧无封水的大功率泥浆泵上的应用，以及迷宫环的设置与安装。
The paper introduces the application and installation of labyrinth sealing device in high - power mud pump without being sealed at suction mouth side.
在二维流化床试验装置上，对由大颗粒物料组成的密相鼓泡流态化床进行了试验研究。
On the equipment of two dimensional fluidized bed, we were primarily engaged in experimental research on coarse particle dense bubbling fluidized bed.
铁路固定装置。电气牵引电缆用嵌入钢筋混凝内的密排导管。直管构件。
Fixed railway installations. compact ducting in reinforced concrete for electric traction cables. straight units.
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