英语词汇essential spectrum怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

双语例句

1
In Sect. 4.3.4 we show that the Dirac operator in an external field has the same essential spectrum as the free Dirac operator provided the potential vanishes at infinity.
在4.3.4节，我们证明了狄拉克算子在外场中有着对应着无穷远处时零势能极限的自由狄拉克算子的相同的本质谱。
2
The essential theory, Raman gain spectrum, gain characteristics, the configuration and pump sources of the FRA are analyzed.
研究FRA的基本原理，喇曼增益谱，增益特性和结构模型，介绍FRA的泵浦源；
3
The essential difference is that the spectrum analyzer, being designed for laboratory use, is designed to cover an extremely wide frequency range with widely adjustable tuning range, bandwidth, etc.
区别在于频谱分析仪被设计成是实验室使用，设计成是带有很大可调范围和带宽等并覆盖非常大频率范围的仪器。

单词	essential spectrum
释义	essential spectrum 简明释义本质谱网络释义短语 1 Left essential spectrum 左本质谱 2 joint essential spectrum 联合本质谱 3 essential spectrum detail 本质谱双语例句 1 In Sect. 4.3.4 we show that the Dirac operator in an external field has the same essential spectrum as the free Dirac operator provided the potential vanishes at infinity. 在4.3.4节，我们证明了狄拉克算子在外场中有着对应着无穷远处时零势能极限的自由狄拉克算子的相同的本质谱。 2 The essential theory, Raman gain spectrum, gain characteristics, the configuration and pump sources of the FRA are analyzed. 研究FRA的基本原理，喇曼增益谱，增益特性和结构模型，介绍FRA的泵浦源； 3 The essential difference is that the spectrum analyzer, being designed for laboratory use, is designed to cover an extremely wide frequency range with widely adjustable tuning range, bandwidth, etc. 区别在于频谱分析仪被设计成是实验室使用，设计成是带有很大可调范围和带宽等并覆盖非常大频率范围的仪器。
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