查询词典 double integral

And I is the double integral of over D ,written ,or

这样就称f在D上可积，I称为f在D上的二重积分，记作或

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, display precision adjusted and real-time graduation.

其关键技术包括：双积分A/D转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, display

其关键技术包括：双积分A/ D 转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, displayprecision adjusted and real-time graduation.

其关键技术包括：双积分A/ D 转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

The paper introduces the method of calculating double integral with symmetry,and then puts forward a calculating method by rebuilding integrand and domain of integration reasonably.

本文还介绍了如何利用对称性来计算二重积分，并提出了通过适当改造被积函数和积分区域以利用对称性来简化计算的方法。

A new ergodic capacity formula is derived which can be expressed as a double integral.

为此推导了一个新的遍历容量公式，该公式可表示为一个二重积分。

Some well-known results on area transformation formula and variant transformation formula of double integral are improved and generalized.

对现有的有关面积变换公式和二重积分变量变换公式的结果作了相应的改进和推广。

Property 3 The double integral is additive with respect to the integration region, that is, if is divided into two regions and and the area of is 0, then

性质 3 二重积分关于积分区域具有可加性，即如果被分成两个区域和，的面积为 0，则有

From the theory and examples, the article points out why in the symmetric block the calculation of the double integral is easy to go wrong and offers some methods to avoid errors.

从理论和实例两个方面，指出了对称区域上二重积分计算中易出现问题的原因，并给出了避免错误的方法。

This paper introduces the concept of double integral, the fundamental nature and its application.

马超(三亚航空旅游职业学院，机电系，海南，三亚，572000)摘要：本文介绍了二重积分的概念、基本性质及其应用。

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。