对数

The correlation between arbor and shrub coverage and buried groundwater level, the minimal area and buried groundwater level was characterized"S"and logarithmic curve respectively.

3对塔河下游植物群落个体数量特征的研究表明：随离河距增大，物种数、密度、草本盖度和频度与地下水埋深相关不显著；乔灌木盖度、最小面积与地下水埋深关系分别为"S"型和对数曲线。

Test showed that the interpolation in the odd step was concise and quick in operation. The interpolation in the even step was used to improve accuracy. The logarithmic curve could be interpolated in the embedded Computerized Numerical Control system with multi-axis control and the precise grounding of conical milling cutter could be realized.

测试表明，奇数步插补简明快捷，偶数步插补精度提高，在嵌入式数控系统中能进行对数曲线的多轴联动插补控制，实现了锥度铣刀的精密磨削加工控制。

The excessive rainfall of Shanghai is analyzed through utilizing 37 years (1919—1956)self-recording raingage records. Firstly, by averaging these 37 sets largest excessive rainfall intensities and plotting the intensity-duration relation curve on logarithmic paper.

本文根据上海37年(1919—1955)自记雨量计记录，取用37组最大暴雨强度，取其平均值，在对数坐标轴内作出强度和历时的关系曲线，然后按照曲线外形，分裂为二，分别用雨条直线来配合。

The maxima of low-temperature internal friction peaks plot a symmetrical peak-like curve at logarithmic frequency spectrum and the peak-like curve shifts toward high frequencies with the increase of heating rate, indicating that phase transition relaxation time decreases; the maxima of high-temperature internal friction peaks exhibit a linear relation to the reciprocal frequencies, and as the heating rate increases its slope rises, which implies that the heating rate drives the normal movement of phase interface further in low-frequency measurements.

低温内耗峰峰值与对数频率呈现峰形函数关系，随升温速率的增加，频率峰向高频方向移动，相变弛豫时间减小；高温内耗峰峰值与倒数频率成直线关系，随升温速率的增加，直线斜率变大，表明低频测量时升温速率对相界面法向运动的驱动作用更强。

In the process of venting and exposure, the compressive component increases rapidly with the admission of room air and then reaches saturation, followed by a logarithmic decrement of the compressive state in the succeeding hours.

真空室放气和样品暴露大气的过程中，首先是压应力迅速上升，达到饱和状态，然后有一个与对数时间呈现线性关系的压应力衰减过程。

So the conclusion that the logarithmic decrement rule fitting for linear systems widely cannot be used in nonlinear unbalanced bearing rotor systems directly, therefore some reference are given to establish the new stability rule for nonlinear unbalanced bearing rotor system.

从而得出广泛适用于线性系统的对数衰减率准则难以直接推广应用于非线性不平衡轴承转子系统的结论，为建立适用于不平衡轴承转子系统的非线性稳定性准则提供了参考。

In Chapter 5,Use the logarithmic derivative formula of Г function, analysis the characters of X2distributed density function in detail, and the effects of change of the parameter on density curve.

利用Γ函数对数微商公式，较详细地分析了X~2分布密度函数的性质，研究参数n对密度函数曲线的影响。

This paper discusses the equivalent normal distribution of logarithmic normal distribution and weibull distribution.

本文着重研讨了对数正态分布和威布尔分布的等效正态分布。

The near bottom velocity profile deviates from traditional logarithmic distribution.

近底流速剖面偏离传统的对数分布。

In this paper,according to the logarithmic velocity distribution in the open channal,formula of the distribution of the vertical velocity in condition of ice-cover was formed.

以明渠对数流速分布为基础，提出有冰盖情况下的垂线流速分布公式，并以此论证了现行冰期流速测点布设模式的合理性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。