查询词典 hydrometric pendulum

So to heighten the theoretical level of controls, we have to apply some control methods which realize the stabilization of the inverted pendulum by dint of our strength.The paper is based on the double linear inverted pendulum model, after concisely introducing the development and current situation of inverted pendulum system research, the mechanism and mathematical model of inverted pendulum are presented,mathematical model of the double inverted pendulum is particularly educed.

近年来，许多学者已经应用各种各样的控制方法对倒立摆系统进行广泛地研究，尽管国内外对倒立摆的研究已有显著成果，但作者对倒立摆的研究才刚刚起步，需要在学习和总结已有经验的基础上，研究倒立摆的控制，以提高控制理论的水平。

This article describes a new method to measure and calculate main cable vertical degree of hydrometric cableway station,and some real application examples are given,hoping that the method would play a certain role in hydrometric cableway use and maintenance for hydrological employees.

根据工作实践，以几何学的原理介绍一种实用的水文缆道站缆道主索垂度的测量和计算方法，并以实例予以说明，以期为基层水文职工维护使用水文缆道起一定作用。

Based on the detailed water quality monitoring data of about 317 hydrometric stations from 1960 to 2000 and water quantity data of 20 hydrometric stations between 1919 and 2000 included in the Hydrological Yearbooks, which were all published by Yellow River Conservancy Commission, and socio-economic data related to the Yellow River, the characteristics of water quantity, major ion chemistry, organic contamination and their mechanisms, and integrated watershed management issues of the Yellow River have been systematically studied in this work.

本文在全面分析黄河流域300余水文站过去40年（1960—2000）水质资料和干支流20余水文站过去近50年（1950—2000）径流量资料的基础上，研究了：（1）、黄河水量的基本特征和近40年来的变化，重点讨论了黄河下游&断流&现象的发展及原因：（2）、黄河天然水质的基本特征、区域分布和影响因素；（3）、黄河天然水质40年来的变化趋势及原因；（4）、黄河水系氮污染和有机污染的特征、近40年来的发展，及其与社会经济发展的关系；（5）、黄河下游水质变化与水量变化的关系；以及，（6）、黄河水质水量管理中的制度安排问题。

The response of the vertical pendulum to the crustal tilt tides is also studied. Both the construction and principle of the capacitance displacement transducer used in two-dimension vertical pendulum tiltmeter are described. The method of calibrating a vertical pendulum tiltmeter using a piezoelectric transducer and an autocollimation is first presented and performed.

本文介绍了二维垂直摆的基本结构和工作原理，分析了垂直摆对地倾斜的响应特性，介绍了高精度电容位移传感器的组成和工作原理，并讨论了利用压电陶瓷和自准直仪联合对垂直摆倾斜仪进行标定的方法。

This paper focuses on the subject of high precision vertical pendulum tiltmeter, and studies deeply a series of problems that involve in high precision capacity micrometry sensor, the mechanical structure of the tiltmeter and its parts, adjusting pendulum and calibration of tiltmeter, and practical application of the vertical pendulum tiltmeter.

本文围绕高精度垂直摆倾斜仪这一主题，对高精度电容测微传感器，倾斜仪机械本体的结构及其零部件，倾斜仪的调摆和标定，以及垂直摆倾斜仪的实际应用等一系列问题进行了较为深入的研究。

Controlling an inverted pendulum is one of the classic problems in the field of control theory research. The self-balancing vehicle introduced in this article is a new style of inverted pendulum; we call it "mobile inverted pendulum".

摘要倒立摆的控制是控制理论研究中的一个经典问题，本文介绍的自平衡电动车就是一种新式的倒立摆，我们称它为移动式的倒立摆。

According to the theory of harmonic motion,the cycle of the simple pendulum is analyzed by infinitesimal and experiment respectively,the formulation and the function curve of the cycle T altered with the location of the liquid surface are obtained,the law of pendulum cycle changed with the pendulum ball's mass reduced is showed more accurately and obviously.

根据谐振动理论，分别用微积分推导和实验测定的方法，分析了一类常见的关于摆球质量减少的单摆周期问题，得到周期T随液面位置h变化的函数关系式，以及周期T随液面h变化的曲线，较精确和直观地展示了因摆球质量减少而导致周期变化的规律。

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。

The influence of the excursion of the mass center of the torsional vibrating system of the three-string pendulum on the measurement of the moment of inertia is analyzed. A criterion for the mass center of the torsional vibrating system to be in alignment with the central axis of the three-string pendulum and a practical method to measure the moment of inertia of a body about a noncentral axis of mass using the three-string pendulum are proposed.

分析了三线摆扭振系统质心偏移对转动惯量测试的影响，给出了扭振系统质心与三线摆中心轴对齐的判别准则和用三线摆测定物体对非质心轴转动惯量的工程实用方法。

The hydrometric pendulum is sometimes used to determine flow velocities in open channels.

测流速的摆锤有时用于确定明渠中的流速。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。