查询词典 cubic

Test results showed that the decayof X2ray in some kind of explosive was obvious and its law conformed with cubic equation.

研究结果表明，X 射线在某炸药中的衰减是比较明显的，其衰减规律符合三次方程形式。

The questionnaire concludes that the model of quantity is a cubic equation.

调查问卷的统计结果显示，我国大学受赠量模型的一般形式为三次方程式。

This new cubic type of status equation currently represents a relatively good mathematical model for calculating the phase equilibrium parameters of water and the properties of saturated humid air.

这个新的立方型状态方程是目前计算水的相平衡参数和饱和湿空气性质较好的数学模型。

The nonlinear equation of β obtained is subsequently approximated by a cubic equation from which β is solved directly.

利用这一极值原理，得到一个关于β的非线性方程，近似简化后成三次方程，直接求解。

Furthermore,a Cubic Curve-fitting equation deduces and set up.In the end,through a group of actual data,the effect of this new method is validated.

建立了三次拟合曲线方程，通过实际数据的检验，验证了该方法的拟合效果。

The equation of van der Waals is a cubic equation about volume.

范德瓦尔斯方程是体积V的三次方程。

How to resolve a cubic equation?

如何解三次方程？

This paper takes Daqing City of Northeastern China s Heilongjiang Province as an example,and introduces the way of gaining land cover information based on the TM image.Then the cubic equation is established to describe the dynamic situation of account of land use.

该文以大庆市为实例，介绍了以TM卫星影像数据为数据源，提取土地覆盖信息的方法，并以此为基础建立以时间为自变量的三次方程，来描述土地利用类型的数量的动态情况。

This paper discusses the method of hypothesis testing on equation parameters,and the way of getting new equations to explain the speed, cceleration and jerk through calculating the differential coefficient of cubic equation.

该文还介绍了方程参数显著性检验的方法，并通过对方程进行多次求导，得到新的方程，来描述研究期间土地利用类型面积的变化速度、加速度以及加加速度。

Second, the van der Waals type cubic equation of state was used to calculate the critical pressure of the binary systems. By introducing the temperature and acentric factor into the mixing rule of attractive part of the equation of state, a new expression was set up.

对实验数据和文献数据的计算结果令人满意，并按照无约束条件最优化得到了相互作用参数表达式的系数值，更加说明本文建立的相互作用参数表达式是正确的和有一定理论基础的。

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％。