查询词典 graphical calculation

In this paper, we put emphasis on introducing the heat transfer calculation for the "pineapple twisted roll"in the deaerator, including the establishment of the physical model, the determination of heat resistance and the calculation of rise in temperature, etc.

重点介绍了这种除氧器中"菠萝花"的传热计算，包括物理模型的建立、传热热阻的确定、温升计算等。

It is therefore not a case here of an internal calculation mistake in which the declarant works internally with incorrect data and then submits a contractual offer based upon it in error, which does not however repeat these defective calculation data.

所以，在此，本案就不是内部的计算错误了--------在内部计算错误案件当中，意思表示一方在内部的工作当中，使用的数据是错误的，并且，根据这一错误提交了合同要约，但意思表示一方并没有重复使用这些错误的计算数据。

This paper overviews the various algorithms for least square collocation, discusses the matrix QR decomposition, derives the relationship between QR decomposition and generalized inverse matrix, and obtains least square inverse used for calculating matrix. In addition, the estimation formula for least square collocation by QR decomposition and its accuracy formula are derived. A case study is conducted using gravity anomaly test and calculation to demonstrate that the QR method is correct and valid in least-square collocation calculation.

分析了目前采用的最小二乘配置法解算方法，在讨论了矩阵的QR分解方法的基础上，推导得出了矩阵QR分解与广义逆矩阵的关系，得出了可以直接利用QR分解求解矩阵的最小二乘逆，并推导了应用QR分解求解最小二乘配置的估值计算公式和精度估算公式，最后通过重力异常实例进行了计算，得出矩阵的QR分解用于最小二乘配置解算的正确性和可行性。

This method makes the complicated space structure calculation decompound into a couple of related plane problem. The bottom structure is supported by longitudinal beams in cross calculation, and then the cross forces and elastic supporting forces are obtained.

横向计算中，底部弹性支承在各纵梁上，可求得结构的横向受力与弹性支承反力；然后将弹性反力作为荷载，反向作用于纵梁上，进行纵梁的受力计算。

In this paper, reciprocation, frequently used in indefinite integral calculation, was applied in definite and broad integral calculation.

将不定积分计算中经常使用的例代换，应用于计算多余定积分与广义积分，在某些情况下，使计算大为简化。

In calculation of definite integral,beginners tend to use three methods of calculation:(1)Leibniz formula,(2)integration by substitution of definite integral,(3)integration by parts of definite integral.

在定积分计算中初学者常用的计算方法有三种：(1)利用牛顿-莱布尼兹公式，(2)定积分的换元积分法，(3)定积分的分部积分法。

The calculation of degree-day is usually based on the definiation of basic temperature and average temperature in the day. The basic temperature is often calculated according to energy supply, physiological demand of human body, the level of economic development and the character of temperature changes. There are mainly four methods for the calculation of average day temperature. The most popular way is to get the average of the highest temperature and the lowest one.

度日计算的前提是基础温度和日平均温度的确定，其中基础温度往往是根据能源供应、人体生理需求、经济水平以及温度变化特点而人为规定的，也有一些学者尝试用数学方法求得；日平均温度的计算方法主要有4种，国外学者经常采用的是取日最高气温和最低气温算术平均值的方法。

With the use of absorption chiller performance model, an approximate calculation method was derived for the absorption chiller unit with a quantitative analysis of the effect of operating parameters on the absorption chiller performance. The formula is simple, physically clear and accurate enough. Its correctness was verified by calculation examples and model predictions were compared against performance data from experiments with favorable results.

给出单效吸收式制冷机局部定量分析近似计算方法，解决了工程上吸收式制冷机局部定量分析计算时的简化计算问题，提出的近似计算方法在精度和计算量方面均具有一定的优势，既解决了吸收式制冷机变工况计算问题，又满足实际机组经济性诊断的需要，实例计算证明了理论模型和诊断方法的准确、简捷性。

In this article, with pointing out that the result of the current calculation model is deficient in the similarity, it has deduced the numerical regulation of the variation of the elements including q ,γ andτ in the steam-water distribution matrix equation when the terminal temperature difference exits in the heater via the power balance equation, and combining with the power equation and boiler absorbed heat equation, the precise calculation model for the impact of heater terminal temperature difference on heat economy of unit is then derived.

指出现有计算模型结果具有近似性的不足，本文通过加热器能量平衡方程推导出加热器有端差时汽水分布方程中q 、γ和τ元素数值的变化规律，然后结合功率方程和吸热量方程得到加热器端差对机组热经济性影响的精确计算模型。

By transforming the equation in phase coordinates to the equation in symmetrical components coordinates, dividing circulator nodes and non circulator nodes, and optimizing the diagonal matrices calculation, the method is developed and found to have higher calculation efficiency.

利用统一的变换公式，只需改变变换矩阵，就可以处理各种简单故障和复杂故障。同时给出了对应于常见故障的变换矩阵，并与断线故障处理方法配合，可以完成任意故障的处理。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了