查询词典 angular

Stepper motor is the electrical impulse signals into angular displacement or linear displacement of the open-loop control components.

摘 要：步进电机是将电脉冲信号转变为角位移或线位移的开环控制元件[1]。

Historically Abbe described microscope eyepieces using a different decomposition in terms of angular magnification of the eyepiece and 'initial magnification' of the objective.

虽然被接受的标准距离是250mm，但现在的显微镜会设计成只有160mm的焦距，使得仪器变得非常的紧凑。

Some main system parameters were analyzed on their influence for the evaluation methods, indicating that the optimal angular magnification described by the two evaluation methods were consistent with the actual systems, and that the evaluation method based on MRTD channel width has a better agreement with actual viewing which is thus more suitable for evaluating thermal imaging systems.

两种方法描述的系统最佳放大率与实际情况一致，且基于MRTD信道宽度的热成像系统性能评价方法与实际观察具有更好的一致性，适合热成像系统综合性能的评价。

Proceedings from the theory of geometric optics,the condition adaxial noncoherent imaging of Fizeau opticalsynthetic aperture imaging system is derived to achieve diffracion limited performance over a finite field of view,and the conclusion is that the angular magnification of the individual telescope must be equal to the linear demagnification factor.

从几何光学理论出发，详细推导了斐索型光学合成孔径成像系统的近轴非相干成像条件，即子望远系统的角放大率等于系统的线性缩放因子。对于焦平面上的像点而言，合成孔径成像系统可等效为一个带有特殊形状孔径光阑的望远系统，这要求该孔径光栏的开口形状和位置分布与合成孔径成像系统各子系统孔径大小和位置分布相一致。

Objective: To measure linear and angular parameters of the posterior structure of the lower cervical spine.

目的：测量国人下颈椎后结构的相关径线及角度，为颈椎后路内固定手术的设计及施行提供参考数据。

They measure the angular velocity of each axis.

我们需要3 个传感器用于稳定全部3 个轴。

The ring laser gyro based on the Sagnac effect is an inertial instrument, which can measure angular rotation.

激光陀螺是一种基于塞纳克效应的惯性仪表，可用来感知外界惯性系统的角速度。

LASER GYRO, A gyro which uses two laser light beams to measure angular rotation.

激光陀螺仪，一种由两条激光光束来测量旋转角速度的陀螺仪。

The ring laser gyro uses laser light to measure angular rotation.

该环形激光陀螺利用雷射光来衡量角旋转。

Mathematics A planar unit of angular measure equal in magnitude to !

度，度数：在量值上等于旋转一周的！

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。