查询词典 derivation

Possible name derivation: Sirius=seirios meaning "burning;" Sirius=the "Dog Star," the brightest one in the Canis Major ("Great Dog") constellation.

可能的命名来源：源自希腊文seirios"燃烧"， Sirius="狗星"，大犬座最亮的星。

The relationship among three ensemble s (microcanonical ensemble ,canonical ensemble ,and grand canonical ensemble ) was discussed by means of derivation of distribution function,calculation of partition function,clarification of the basic thermodynamics as well as the fluctuations of particles in order to get profound cognition of these three ensemble s.

从三则系综(微正则系综、正则系综和巨正则系综)分布函数的推导，配分函数的计算，基本热力学量的表达及能量、粒子数的涨落等方面来讨论三则系综之间的关系，以便更深刻地认识三则系综之间的关系、灵活运用三则系综来解决实际问题。

The following results were obtained: 1. Several multi-pore materials were compared and a nylon membrane was choosed to conduct experiments. 2. Two devices and methods for controlling negative hydraulic heads were developed. Coupled with the devices, a system for precise control of soil moisture udring pot experiment was developed. 3. Two times of pot experiment studying wheat seedling growth under precise soil moisture control were conducted. Some very important results were obtained. 4. Capillary rise, horizontal and vertical infiltration under different nagative hydraulic heads were observed. The concepts of "critical wetting distance" and "wetting coefficient" were proposed. The linear relationship between wetting front movement distance and cumulative infiltration amount was confirmed. Spatial distribution model of soil moisture and its simple derivation method were established.

通过该项目支持，获得了以下的研究成果： 1、比较和检验了不同多孔材料，初步选定了用于水分控制的多孔膜材料； 2、完成了两种负水头控制方法与装置的研究，并制作了仪器，与负水头控制装置配套，制作了盆栽实验用水分精控盆； 3、进行了两期小麦苗期水分精确控制盆栽实验，获得了一系列重要结论； 4、进行了不同负水头下土壤的毛管上升、水平入渗、垂直入渗研究，提出了临界湿润厚度、湿润系数两个概念，确定了湿润锋与入渗量的线性关系、土壤含水量的空间分布模型，土壤含水量空间分布的简单推算方法。

Depending on the mechanism of action of drugs, type derivation of benzimidazol carbamate drugs and new drug designing were discussed.

依据药物作用机理，进行了苯并咪唑氨基甲酸酯类药物的类型衍化和新药设计。

This paper deriving the theory workinflection point in the static stage characteristics curve of small measurement range lineardimension measurement .by the way of high pressure and back pressure pneumaticmeasure and designed the parameter of the mainly and measure spray head, which are thekey component in the spray head-baffle pneumatic sensor .The different groups for themain-spray head and the measure spray head ,will effect the dynamic and static stagecharacteristic parameter .The author have done contrast experiment and optimizationdesign to test and verify the theory derivation whereby made the rang of show valve ofpneumatic measure system measure range up to 40 μ m, the sensitivity up to 100mv/μ m,resolution up to 0.05 μm, the uncertainly of measure is less than 0.02 μm, satisfaction ofrequirement of groups the carboy hatch thickness size precise measure of soft shims.

对高压背压式气动测量用于小量程线性尺寸测量的静态特性曲线的理论工作拐点进行了推导，对气动测量系统中的喷嘴-挡板型气动传感器中的关键部件——主喷嘴和测量喷嘴的参数进行了理论设计，对主喷嘴和测量喷嘴的不同组合，将影响测量系统静、动态特性指标的喷嘴参数进行了对比实验和优化设计，并通过实验验证了理论推导，从而使气动测量系统量程的示值范围达到40μm，灵敏度达到100mv／μm，分辨率达到0.05μm，测量不确定度小于0.2μm，满足了压缩机缸盖软体垫片厚度尺寸精密测量分组的要求。

Therefore,based on microwave highQ cavity resonator,a new technique of calculating the quality factor through theoretical derivation is presented,which allows flexibility in choice of measurement point.This method solves the problem of coupling system influence,which can cause larger error in measuring.

为此，针对微波高Q谐振腔，给出了一种测量其品质因数的新方法，该方法可以根据实测的谐振曲线灵活选取测量点，有效解决了传统方法中由于谐振腔受外电路影响导致测量误差较大的问题。

Simliar to isomorphism and derivation, centralizer is an important transformation on algebra or ring.

像同构和导子一样，中心化子是代数或环上的一类重要的变换。

Our derivation of the chain rule contains one flaw .

我们推导链式法则的过程中有一个漏洞。

Characteristic derivation ???

特征派生。。

At the beginning of the first chapter the derivation from the Lagrange and Hamilton to the motion equation of a charged particle in magnetic fields in classic mechanics is presented.

论文的第一章是基础理论，一开始是推导经典力学中的单个带电粒子在电磁场中的运动方程，分别从拉氏量和哈密顿量推导。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。