Dictionary entry
complex quantity
noun
复量；用电学中的复数表示的物理量
a quantity expressed as a complex number, especially one used in electrical engineering
复量
In use
In electrical engineering, we often represent a circuit's impedance as a complex quantity.
A complex quantity consists of both a real part and an imaginary part.
The engineer calculated the complex quantity to determine the power factor.
a/the complex quantity
复量前通常加冠词a或the。
A complex quantity is denoted by a bold letter.
复量通常用粗体字母表示。
complex quantity of [something]
表示某量的复量形式。
The complex quantity of the voltage is measured.
电压的复量被测量。
express [something] as a complex quantity
常用于将实数形式的物理量转换为复数形式。
We can express the alternating current as a complex quantity.
我们可以将交流电表示为复量。
Common mistakes
The circuit uses complex numbers.The circuit uses complex quantities.
在电气工程中，术语是“complex quantity”（复量），而不是“complex number”（复数）。
We need to calculate the complex quantity's value.We need to calculate the value of the complex quantity.
对于无生命物体，中文学习者常错误使用's所有格，正确结构应为“the value of...”。
Connections
Confusing words
- complex number
- 复数 · 数学中的复数包括实部和虚部，而"complex quantity"在电学中特指用复数表示的正弦量或相量。
- complex amplitude
- 复振幅 · "complex amplitude"通常指波的复振幅，而"complex quantity"是一个更通用的术语，指任何用电学复数量表示的物理量。
Word family
- complex number
- 复数 · n.
- complex plane
- 复平面 · n.
- complex conjugate
- 共轭复数 · n.
- complex-valued
- 复值的 · adj.
Dictionary facts from ECDICT.