There could be any number of reasons this could happen: the models for the gas assume it's spherical and smooth when it may be neither, for example.
这种情况能够发生，一定有很多原因：比如，用于气体估算的模型是球形的，同时也是光滑的，但是气体可能不具有这两个特征。
The mathematical models of the dynamic target and the tested apparatus are constructed with spherical trigonometry spherics.
运用球面三角学，建立了动态靶标与被测仪器间的数学模型；
Calculating models for flat and spherical planetary fixture were developed.
建立了平板型和球面型行星夹具膜厚均匀性的计算模型。
The measured atmospheric model can only be represented as sum of spherical linear stratified models.
实测大气模型，只能用多个线性成层大气模型的总和来代表。
Within the method of first-order trend OK, Gaussian semi-variogram model performed better than both the spherical and exponential models.
一阶趋势的OK方法中半方差函数模型选用高斯型的比选用球状和指数型的插值效果相对要好。
Panoramic images, varying according to projection models, can generally be divided into polyhedral panoramic images, spherical panoramic images and 360-degree panoramic cylinders.
全景图像根据投影模型的不同，一般可以分为多面体全景图像、球面全景图像和360度柱面全景。
The tissue temperature responses generated from heating by a spherical thermistor probe were calculated by using a numerical method, in which different bio-heat transfer models were adopted.
采用数值方法，分析了不同生物传热模型条件下，采用热敏电阻探头加热时，生物组织中温度响应的动态特征。
Existing models of joints 'were based on the semi-rigid beam-column joints of steel frames and had many limitations, so they were not suited to welded hollow spherical joints.
已有节点模型主要是针对钢框架梁柱半刚性节点提出的，具有很大局限性，不适合于焊接空心球节点。
Under the spherical coordinate, the boundary value method using the along track estimates of(T/P) satellite as open boundary conditions is applied to establish tide models in the Yellow Sea.
利用球坐标系中的二维潮波方程组，以T/P卫星沿迹分析结果为开边界条件的边值法，计算了黄海中的一个四边形区域。
Under the spherical coordinate, the boundary value method using the along track estimates of(T/P) satellite as open boundary conditions is applied to establish tide models in the Yellow Sea.
利用球坐标系中的二维潮波方程组，以T/P卫星沿迹分析结果为开边界条件的边值法，计算了黄海中的一个四边形区域。
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