vector area

Thrust Vector control is one of objects being seeked by engineers in rocket propulsion area.

流场控制以及基于此的发动机推力方向控制长期以来都是国内外火箭推进领域广大工程技术人员追寻的目标之一。

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It is an important method of integral calculation in the area of applied mathematics to find the integral factor of Pdx+ Qdy+ Rdz, which is also an important method to judge if a three dimensional vector field is conservative.

寻找Pdx+Qdy+Rdz的积分因子是应用数学领域中极为重要的积分计算方法，同时也是判断一个三维向量场是否为保守场的重要方法。

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Since the end of 1960's, Guidong County in Hunan has been an endemic area of tertian malaria with Anopheles hyrcanus sinensis as transmission vector.

桂东县自六十年代末以来，属以中华按蚊为主要传疟媒介的间日疟流行区。

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After congruence of lines changes into vector bundles, its correctness is proved, and theorem of Backlund is proved by using sections of bundles. A condition of iteration is given for seeking minimal area of a curved surface with fixed boundary curve.

将线汇转化成向量丛后从理论上证明了这种转化的正确性，利用向量丛的截面理论证明了Backlund定理并给出一种固定边界而求面积最小的曲面的迭代条件。

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The area of image is calculated by using edge tracing and vector analysis in this paper.

通过对边界的跟踪与矢量分析，实现了对面积的计算。

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Multi-element Linear Regression Analysis of Parameters Involved in the Slip Vector Model Applied for Ground Movement Prediction in Mountainous Area

山区采动滑移向量模型中参数的多元线性回归分析

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Entropy of area vector of axle centre trail in quadrant was used to evaluate distributing uniformity of sliding bearing axle centre trail in each cycle comprehensively and quantificational.

利用象限面积向量信息熵进行综合的、定量的评价滑动轴承各个周期内轴心轨迹的总体分布均匀性。

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Methods: To research Xenopsylla Cheopis distribution area and vector role, etc. in the laboratory and fieldwork.

方法通过鼠疫流行现场调查和实验室研究致痒蚤的分布范围、媒介作用的各项指标.

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The close-loop control modal based on J-M strategy needs the rotor speed as feedback signal. More researches on the area are needed to combine J-M control strategy with sensorless vector control system.

但是基于J-M变换矢量控制策略的闭环控制模型需要电机转速信号作为反馈信号，因此要与无速度矢量控制系统结合使用还有待研究。

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Information Fusion of Two Sections Based on the Area of a Vector Ellipse and its Application

基于矢椭圆面积的双截面信息融合及其应用

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