查询词典 first order

For the first order we would ask for advance payment.

第一次订购我们需要收预付款。

It has been detected in a wide range of aerobe. The decomposition of hydrogen peroxide catalyzed by catalase is a bi- substrate enzyme-catalyzed reaction. As Chance proposed, it is an overall first-order reaction.

过氧化氢酶催化过氧化氢分解是一个两底物酶促反应，依照Chance提出的机理，反应速率方程具有一级反应方程的形式。

The finite difference is used to approximate differential operation; the reflectance map equation described by the first order nonlinear differential equation is transformed into an algebraic equation about the unknown surface heights, and then the objective equation is constructed by the reflectance map equation and gradient information of image. Moreover, the Newton iterative algorithm is utilized to obtain the numerical solution and 3D shape of the surface.

采用有限差分近似微分运算，将一阶非线性微分方程所描述的反射图方程转化为关于未知表面高度的代数方程，再由反射图方程和图像梯度信息构造目标方程，进而用Newton迭代算法求出该方程的数值解，得到表面三维形状。

The deactivation rates of penicillin amidase in both systems follow the first-order model. The inactivation rate constants increased gradually and α decreased slightly, with the increase of temperature.

随着温度的升高，失活速率常数k〓和k＇〓逐渐增大，α略有所降低；当体系温度相同时，该酶在反胶团中的k〓值比水溶液中的k＇〓小。

Angular noise correlation time has great influence on the linewidth in the intensity spectrum.

标 签 泛函导数定态强度分布一级相变类比瞬态解本征值 functional derivation steady-state intensity distribution first-order-like phase transition instantaneous solution eigenvalue

In this paper we use pointwise modulus of smoothness to study approximation direct theorem and equivalent theorem for some linear operators and quasi-interpolant operators; Using pointwise modulus we discuss the strong converse inequality on K-functional; and using a modified weighted K-functional and weighted modulus of smoothness we study approximation with Jacobi weight on operator with non-zero first order moments.

本文利用点态光滑模ω_~(2r)来研究某些线性算子及逆中插式逼近正定理和等价定理；利用点态光滑模讨论其关于K-泛函的强逆不等式；同时利用一种改变的带权K-泛函和带权光滑模研究一阶矩不为零的算子的点态带Jacobi权逼近。

Based on first order ODE approximation theory and Hopf bifurcation theory, the nonlinear motion stability of the train is studied emphatically.

基于常微分方程的一次近似理论和Hopf分叉理论，重点研究了列车系统的非线性运动稳定性。

In the second section,we discuss the asymptotic and oscillatory behavior for aclass of first-order mixed neutral differential equations.

在第二节，讨论了一类一阶混合中立型微分方程的渐近性与振动性。

The lattice constant, atomic moment and the anisotropic magnetostriction exhibit abrupt changes at about 42 K, which is connected with the first-order structural transition and indicative of a strong coupling between magnetism and crystal structure.

晶格常数、磁矩和各向异性磁致伸缩常数在42K都有一个迅速跳变，这与一级结构相变密切相关。

According to first-order reaction, nitrobenzene's total natural attenuation rates constant are 0.063 5/h and 0.005 9/h respective of silt medium and sand medium.

根据一级动力学方程计算得出，硝基苯在淤泥介质中的自然衰减总速率常数为0063 5/h，在砂砾介质中的自然衰减总速率常数为

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。