V2EX line loss

Line Loss

释义 Definition

line loss线路损耗;指信号(电压/功率/数据)在传输线路(如电缆、光纤、电话线、输电线)中因电阻、介质吸收、辐射、连接不良等原因而衰减/损失的现象。常见于通信与电力工程语境。(也可泛指“线路上的损失”。)

发音 Pronunciation (IPA)

/lan ls/

例句 Examples

The technician measured the line loss in the cable.
技术员测量了这根电缆的线路损耗。

Because of long distance and poor connectors, the system suffered significant line loss, so the signal had to be amplified.
由于距离较远且连接器状况不佳,系统出现了明显的线路损耗,因此必须对信号进行放大。

词源 Etymology

line(线路、线缆)+ loss(损失)组合而成的工程术语,字面义即“线路上的损失”。在通信领域常与“衰减(attenuation)”紧密相关,用于描述信号沿传输介质传播时的功率下降。

相关词 Related Words

文学与作品 Literary Works

该词更常见于工程与技术经典/教材而非文学小说中,例如:

  • The Art of Electronics(Horowitz & Hill)讨论电路与信号传输时涉及线路损耗/信号衰减等概念
  • Transmission Line Design Handbook(Brian C. Wadell)系统性讨论传输线与线路损耗(line loss)问题
  • 多种 IEEE 通信相关标准与应用笔记中也会频繁出现该术语(用于描述链路预算与衰减)
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