1) area source model
面源模式
1.
The area source model of particulates was deeply researched, and the places of the initial precipitation of the area sources of particulates were determined.
对颗粒物面源模式做了深入研究 ,确定了颗粒物粒子面源开始沉降的位置。
2.
It has become a more and more urgent task to develop a better method for calculating the area source model with the increase of the atmosphere pollution as a result of human beings' activities.
系统地介绍了面源模式计算方法。
3.
The mathematical method of the area source models that were usually used for atmospheric environment simulation in China was reviewed and a new concept,reversed diffusion parameter of area sources,was developed.
笔者对我国大气环境界普遍采用的面源模式计算方法进行了分析 ,提出了一种全新的概念———面源反扩散参数。
2) area source integral model
面源积分模式
1.
For the calculation of daily average concentration of SO2 in the atmosphere of a zone during a normal day, Gaussian plume and puff models are used for point source, backward point source model and area source integral model are separately used for area source.
在计算区域典型日大气中SO2日均浓度时,对点源采用高斯烟流模式和烟团模式;对面源分别采用后退点源模式和面源积分模式。
3) areasource dispersionmodel
面源扩散模式
4) face source model
面源模型
1.
Therefore,the line and face source models are both analyzed for their convergence characteristics of sound pressure,which shows that the line source and face source models can be put to use,in computation.
然后详细讨论了点源和面源模型计算传递函数的区别,得出结论:面源模型更适合用于二维模型计算传递矩阵,收敛更快,可以消除点源模型计算的奇异性;点源模型可以计算体积流量的传递函数,但是计算压力传递函数会引起较大误差,这时需要用到面源模型。
5) Aiea source formula
面源公式
6) power source pattern
电源模式
1.
This study examined the effect of different power source patterns on prepared calcium phosphate coatings by electrochemical deposition technique using constant current and pulse current.
通过采用恒电流模式和脉冲电源模式考察不同的电源模式对电沉积磷酸钙涂层的影响。
补充资料:球粒陨石均一源储模式年龄
分子式:
CAS号:
性质:假定样品最初来源于球粒陨石均一源储,根据样品与球粒陨石均一源储现今钐-钕同位素组成而计算出的样品的年龄(tCHUR)。计算方法与亏损地幔模式年龄相同,所不同的是将(143Nd/144Nd)DM换成(143Nd/144Nd)CHUR,其值为0.512638;(147Sm/144Nd)DM换成(147Sm/144Nd)CHUR,其值0.1967。用该标准计算出的模式年龄一般较亏损地幔模式年龄低,其意义类似于亏损地幔模式年龄,但由于自太古代以来地球的地幔大多数处于亏损状态,因此太古代以后形成的地质体不采用此模式。
CAS号:
性质:假定样品最初来源于球粒陨石均一源储,根据样品与球粒陨石均一源储现今钐-钕同位素组成而计算出的样品的年龄(tCHUR)。计算方法与亏损地幔模式年龄相同,所不同的是将(143Nd/144Nd)DM换成(143Nd/144Nd)CHUR,其值为0.512638;(147Sm/144Nd)DM换成(147Sm/144Nd)CHUR,其值0.1967。用该标准计算出的模式年龄一般较亏损地幔模式年龄低,其意义类似于亏损地幔模式年龄,但由于自太古代以来地球的地幔大多数处于亏损状态,因此太古代以后形成的地质体不采用此模式。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条