线路的

A communicating annunciator is a sophisticated device that is connected to a phone line and gets on that line (dial-up or leased) to let you know that something is broken.

通信报警器是一个复杂的设备，与电话线路相连接。线路中的报警器工作时，表明什么东西出现故障了。

This design unifies Xinjiang Hua Dianhong the wild goose pond power plant 220kV system actual wiring system to carry on the line protective device the design and the related installation computation.

本设计结合新疆华电红雁池电厂220kV系统实际线路设置进行线路保护装置的设计与相关整定计算。

The fault component integrated impedance becomes a ratio of the sum of the fault component voltage phasor to the sum of the fault component current phasor of two terminals. It is used to identify if a fault exists on the line.

利用故障时线路两端故障分量电压相量和与故障分量电流相量和的比值，来判断线路上是否发生了故障。

In these cases, the mode of singlepole reclosing was set, and when single phase grounded fault occurred at the transmission line, all of protection relay operated correctly, and three phases of one breaker directly tripped at one time, and this breaker was not reclosed.

详细介绍了华中某500kV变电站两起典型的重合闸不正确动作事故，即在单重模式下，输电线路发生单相接地故障，保护装置均正确出口情况下，其中一个线路断路器直接三跳，未重合。

Along with 8 high-quality balanced low-impedance mic preamps, there are balanced high-impedance line inputs for direct connection of line sources or high-output instruments.

除了 8 个平衡式低欧姆麦克风输入端以外， PMH880S 还有平衡式高欧姆线路输入端，可以直接连接有高电平输出的线路音源或者乐器。

Trip over the line cord, and the line cord cannot be damaged.

请将本产品安装在受保护的场所，以免有人踩到线路或被线路

The joining of line arrester in insulator string in 35kV transmission lines sections which are easily stroked by thunder was researched.

研究了在35kV输电线路雷电&易击段&绝缘子串上并接线路避雷器来提高线路耐雷水平的方法。

The trail officially opened in 2000, 11 years after it was proposed by hiking enthusiasts as the first coast-to-coast footpath.

1989年，徒步旅行爱好者们提议把这条线路作为横穿大陆的远足路线。11年后，这条线路终于正式开放了。

Based on these analysis,route optimization of transmission line is performed to ensure the safety and...

在此基础上对线路路径进行优化，为线路防冰设计的安全性和经济性提供保证。

The government is also studying a US$1.3 billion pipeline to supply natural gas to cities between Ayacucho in the central Andes and the northern port of Chimbote.

该代理人说该项目包含在秘鲁南部的一条500千瓦输电线路，需要投资4.5亿美元，以及两条200千瓦输电线路，需要投资7000万美元。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。