查询词典 spectrum

Photographic camera is designed to detect energy in the visible and near infrared portions of the electromagnetic spectrum.

照相机的设计，以侦查能源在可见光和近红外部分的电磁波谱。

Withdrawal of all exclusive licenses, privileges and rights to use of electromagnetic spectrum.

废除一切形式的、对于观点和思想的私人所有权。

In the electromagnetic spectrum each object has its own signature that is picked up on the scene.

在电磁波频谱每个对象有在现场被拾起的它自己的署名。

Remote sensing techniques are useful in ultraviolet, visible infrared, and microwave regions of the electromagnetic spectrum.

遥感技术是有用的在紫外、可看见的红外线和电磁波频谱的微波地区。

Frequency selective surfaces have found widespread applications in much of the electromagnetic spectrum.

频率选择表面几乎在电磁波所有频谱的范围内都有广泛的应用。

Visible light in the mans field of vision is just a very confined section of electromagnetic spectrum.

人眼所能感知的可见光仅是电磁波谱中极窄的一段。

Development of electromagnetic spectrum infrastructure that implements every person\'s equal right to communicate.

发展能够使每个人实现平等的交流权利的电磁频谱设施。

Electronic warfare undertaken to prevent or reduce an enemy's effective use of the electromagnetic spectrum .

为了阻止或减少敌人有效地运用电磁谱的而采取的电子战争。

Observational astronomy may be divided according to the observed region of the electromagnetic spectrum .

在天文学，信息主要是收到的检测与分析的可见光或其他地区的电磁辐射。

They looked for the emission of certain wavelengths within the radio part of the electromagnetic spectrum.

他们寻查了电磁波普的无线电波段内所释放的特定波长。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。