曲线角

In this paper, assuming that pulsar magnetic field is rotating vacuum dipole, which is derived from retarded potential, the PA curve is reinvestigated.

文章采用从推迟势导出的旋转真空磁偶极场，研究了在脉冲星磁场为旋转磁偶极场位形下的线偏振位置角曲线。

Since the first discovery of pulsar in 1967, static dipole field has been used for a long time to represent pulsar magnetic field in the study of rotating vector model, which is used to interpret the variation of linear polarization position angle with pulse phase.

1967年发现第一颗脉冲星以来，在用于解释线偏振位置角随脉冲相位变化曲线的旋转矢量模型中，脉冲星磁场通常被近似为静态磁偶极场。

Mainly consists of two aspects, one is made from an inverted pendulum control of the initial perspective through direct adaptive fuzzy control methods to restore stability at Liandugu; the other is an inverted pendulum control from the initial point begun tracking a sine curve, Even inverted pendulum angle according to the requirements of the sinusoidal changes.

主要分两个方面，一方面是使倒立摆从一个可控制的初始角度开始通过直接自适应模糊控制的方法使其重新稳定在零度角；另一方面是使倒立摆从一个可控制的初始角度开始使其跟踪一个正弦曲线，即使倒立摆的角度按所要求的正弦变化。

Sine wave parameters of law;Dielectric loss angle; FFT; Curve fitting; Digital measurement

中文关键词：正弦波参数法；介质损耗角； FFT；曲线拟合；数字化测量

This paper applies Fourier series to detach the fundamental waves phase, adopts the curve fitting to the frequency of the maximum spectrum amplitude, utilizes the sine wave parameters of law to the phase angle of this frequency, calculates δvalue and tanδvalue.

本文以傅立叶级数分离基波相位的方法为依据，通过曲线拟合求频谱幅值最大值处的频率，利用正弦波参数法求该频率处的相位角，从而计算出δ值和tanδ值。

Rotary hammer, electric drill, electric router, angle grinder, slotter, marble cutter, trimmer circular saw, jig saw, motor, gear.

3D36 电锤，电钻，雕刻机，角向磨光机，开槽机，石材切割机，修边机，电圆锯，曲线锯，电机，齿轮。

In this paper, based on nonlinear FEA software ANSYS/LS-DYNA, 3D dynamic simulation models of eighteen-type tubes for backward spinning was established. This paper not only obtained spinning force of tube backward spinning but also obtained the spinning force curves varying with the different reducer ratio, feeds, fillet radius for spinning roller, forming angle and diameter of spinning roller, and diameter blank inner.

以大型非线性有限元软件ANSYS/LS-DYNA为分析平台，通过对18种几何尺寸和参数不同的筒形件三旋轮强力反旋旋压过程的三维动态模拟，得到了它们的旋压力以及旋压力随不同减薄率，旋轮进给量，旋轮圆角半径，旋轮成形角，旋轮直径和毛坯内径的变化曲线。

In this article, authors introduce data-getting methods of a shield attitude measure system composed of laser target, total station and PLC, and state calculation methods to get coordinates and angles of the shield machine with these measure data.

在利用盾构机进行的隧道掘进施工工程中，为了将掘进线路与隧道设计曲线之间的误差控制在一定范围内，需要及时测量盾构机的位置和掘进的方位角。

Trace straight, curved, and angle lines from the left to the right linking two objects.

从左到右描直线，曲线和连角线，把两个物体连起来

The research in this dissertation is based on reconstructed CT images. Basic knowledge of forensic anthropology and some feature exaction methods have been studied. The main work includes: 1. The contour of skull, orbit and its contour, the curve of submaxilla have been selected as the important characteristics of the skull.

本文以颅骨CT重建图的二维正面图像为研究对象，结合法医人类学中的相关知识对识别过程中的关键算法进行研究，主要工作包括以下几个方面： 1：针对课题研究需要，选择并提取颅骨轮廓、眼眶及其轮廓、下颌角曲线作为颅骨重要特征。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。