three-wire installation

The article introduces the intelligence head end of Guangzhou Television Station employed ROSA monitor system, and compares with three network communication methods in the system, explicates in detail their the principle of performance, the installation of equipments and the setting of parameter.

广州有线电视智能前端采用了ROSA监测系统，由此衍生出3种网络通信方式，详细说明它们的工作原理、设备安装以及参数设置。

Parachute Skirt with Flowers, an art installation made of military detritus collected over three decades, offers a disturbing reminder of that era.

带花的降落伞裙是一种由收集了三十多年的军用碎石制成的艺术装置，总让人不安地想起那个年代。

In view of problems of roll ring structure and connecting with shaft of carbide composite roll used in bar mill, the structure, material, installation and design characteristics of three kinds of carbide composite roll which were successfully used in abroad were introduced

针对棒材轧机应用硬质合金轧辊时，辊环结构及辊环与轧辊轴连接方式存在的问题，介绍了国外3种获成功应用的硬质合金组合轧辊的结构、使用材质、安装和设计特点

Then divide the system into three modules, including batch install and the installation log output module, dynamic monitor and the monitor log output module, log match and the report output module.

然后对系统进行模块划分，分成了三大模块，分别包括批量安装和安装日志输出模块、动态监控与监控日志输出模块、日志匹配以及判定报告输出模块。

The installation and prestressed tension of anchor rod of the permanent ship lock miter gate in the Three Gorges Project

三峡永久船闸人字门顶枢锚杆安装及预应力张拉