推
- 与 推 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The measuring principle of wheel pressure on container cable car at inclined container terminal is described.
简述斜坡式集装箱码头缆车轮压的测量原理,根据实测成果建立了集装箱缆车轮压的概率模型,并推得设计基准期(50年)内轮压和不均匀系数的不同分位值,为集装箱缆车的轮压计算提供依据。
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In this paper, fuzzy theory, Markov chain and RFM model are integrated to evaluate customer lifetime values. This approach calculates the profit contribution of customers in every purchasing situation. Firstly, customer purchasing state is updated contiguously by fuzzy theory and RFM model with transition matrix which represents the probabilities among purchasing states. Then the profit contribution of each period is computed by using revenue and cost data. Finally, the profit contribution of each customer is accumulated through some discounting consideration. This will construct the final customer lifetime values.
本研究结合模糊理论、马可夫链、和RFM(recency, frequency, monetary; RFM)模式,配合折现模式来计算顾客终身价值,其中模糊理论及RFM模型定义顾客之购买状态,马可夫链则推算顾客在每期购买状态改变的机率,然后推估出顾客在每期交易的转换机率,再结合产品的收益与成本资料,算出顾客在各期对公司的利润贡献,最后将各期的利润贡献折现加总,计算出各种购买状况下的顾客价值,利用此顾客价值就可指出哪些是对企业有利的顾客。
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This advanced chemical reaction engineering is a continuative study of simple idea and principle for homogeneous systems and extended to heterogeneous and more complex systems.
此高等反应工程是延续大学部己学习在均相中有关之简单观念及理论,并推展到非均相较复杂系统之设计及操作上。
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In this thesis, a semi-classical model of the force on an atom is used to describe the motion of a two-level atom interacting with a standing wave laser field. The velocity dependent force and momentum diffusion are derived through optical Bloch equations by using the matrix form of the continued fraction technique. By investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom.
本文利用半经典理论,从二能级原子在激光驻波场中所满足的运动方程出发,推导出密度矩阵元所满足的递推关系,利用矩阵连分数方法求解出密度矩阵元,从而求出依赖于原子运动速度的光压力与动量扩散系数,通过讨论原子在激光场中的动力学行为,为原子在激光场中被囚禁、形成原子列阵以及可控制的量子态,从而为量子信息处理提供理论基础。
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In the field of logic such a process is known as induction, in contradistinction to the deduction process that leads to f=ma.
在逻辑学领域中,这样的过程统称为归纳,它与导出f=ma的推演过程截然不同。
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Initiators should elect one person as a convener.
筹备员应互推一人为召集人。
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Eastern Himalaya Syntaxis is an important area in studying climatic-tectonic reciprocity. In this paper, single-crystal-high-precision laser ~(40)Ar/~(39)Ar method was used to build the thermal evolutional history of Eastern Himalaya Syntaxis by tests on river sediments on the lower reach of Yalung-Tsangpo River. The contrast of age statistical results against the figure showing the changes in rate and angle of convergence during India plate has been colliding against Eurasian plate since late Mesozoic and the diagram consisting of global deep-seaδ18O andδ13C records is done, for the purpose of revealing climatic and tectonic information on rock cooling and referring the relationship between thermal evolutional history and climate and tectonics.
东喜马拉雅构造结是气候与构造相互作用的典型地区,本文尝试使用单颗粒高精度单次全熔~(40)Ar/~(39)Ar法对采自雅鲁藏布江大峡谷下游墨脱县城以南约50 km处地东河段的细粒现代河沙进行年代学测试,建立东喜马拉雅构造结的热史演化序列,并通过与代表全球气候变化的18O、13C浓度变化曲线和印度大陆向北运动的速度、角度变化曲线的对比,揭示气候、构造因素与东喜马拉雅构造结热史演化的耦合,推定热史演化与气候、构造过程的关系。
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The contrast of age statistical results against the figure showing the changes in rate and angle of convergence during India plate has been colliding against Eurasian plate since late Mesozoic and the diagram consisting of global deep-seaδ18O andδ13C records is done, for the purpose of revealing climatic and tectonic information on rock cooling and referring the relationship between thermal evolutional history and climate and tectonics.
东喜马拉雅构造结是气候与构造相互作用的典型地区,本文尝试使用单颗粒高精度单次全熔40Ar/39Ar法对采自雅鲁藏布江大峡谷下游墨脱县城以南约50 km处地东河段的细粒现代河沙进行年代学测试,建立东喜马拉雅构造结的热史演化序列,并通过与代表全球气候变化的18O、13C浓度变化曲线和印度大陆向北运动的速度、角度变化曲线的对比,揭示气候、构造因素与东喜马拉雅构造结热史演化的耦合,推定热史演化与气候、构造过程的关系。
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In the third chapter,we establish a local convergence theorem of the two points Secant method through the use of the recurrence technique.
在第三章中,利用递推法的技巧,我们建立了两点弦截法的局部收敛性定理。
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First, we derive the Slant operational matrix of integration and set up Slant conversion table, then we could solve the differential equation and the partial differential equation easily.
首先,推导出 Slant 转换的积分运算矩阵,然后建 Slant 转换表,之后我们就能轻地求解微分方程和偏微分方程的问题。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。