But in a short period of time can be approximated as smooth.
但在短时间内可近似看作是平稳的。
For different soil depths, the amplitude of temperature daily variation can be approximated as an exponential function of the depth.
一日内地温变幅与深度关系可拟合成指数函数。
In high frequency region, the response of an extended target is well approximated as the sum of responses from individual scattering centers.
在高频区，复杂目标的电磁散射表现为多散射中心相干迭加的结果。
Experiments on simultaneous mask effect where tones were masked by narrow-band noises with different SPL showed that the masking curve could be approximated as two segments of straight line.
不同声压级下窄带噪声对纯音同时掩蔽效应的实验结果表明：掩蔽曲线可以用两段直线来近似。
The derived dynamic transfer matrix can be used for calculation of the exact natural frequencies and mode shapes for thin-walled beams and structures approximated as composed of thin-walled beams.
动态传递矩阵可以用于计算薄壁梁集合体的精确固有频率和模态形状。
The animals were reared in conditions which approximated the wild as closely as possible.
这些动物是在尽量近似自然的环境下饲养的。
The Julian calendar approximated the mean tropical year as 365.25 days and proposed 366-day leap years for every one divisible by four.
儒略历将太阳年划为365.25天，闰年366天，每四年一次。
We approximated the distance as three miles.
我们粗略估计距离为三英里。
As one of the connections for three phase induction motor to operate from single phase supply, SEMIHEX connection can enable three phase induction motor have approximated symmetrical operation.
作为三相感应电动机单相运行的一种特殊接法，SEMIHEX连接可使三相感应电动机在单相电源上接近对称运行。
The orthogonal polynomials approximated to shear-moment deformation curves were employed as the basic function to describe the displacement variation along the vertical.
采用一族能较好地逼近弯剪型变形曲线的正交多项式作基函数来描述位移沿竖向变化。
The impedance function is approximated by fractional polynomial, which is represented as a series connection of parallel RL elements (Foster form).
阻抗函数用分式多项式近似，并表达为串接的并联电阻、电感的福斯特电路形式。
We point out that the equation can be approximated by a set of linear ones and the exciton polarization wave can be regarded as a Bose field only in the limit of low excitation.
我们指出只有在激发比较弱时，这组方程才可近似为一组线性方程，电子空穴极化波才可以看作玻色场。
In this method, the non uniform media is approximated by multi layer dielectric media and modeled as a cascaded transmission line.
这种方法将一维不均匀介质用多层介质近似，并进一步用级联的传输线模型等效。
A SAR image is regarded as a 2-d continuous function and is approximated by support vector regression (SVR).
将SAR图像看作连续二维函数，利用SVR方法对其进行逼近。
A SAR image is regarded as a 2-d continuous function and is approximated by support vector regression (SVR).
将SAR图像看作连续二维函数，利用SVR方法对其进行逼近。
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