单作用

The examples are equivalent and illustrate that either single or double quotes are allowed

两个例子的作用完全相同，只不过是为了说明单、双引号都可以通用。

An optimization model of net income after tax for single product in productiondistribution supply chain was established.

供应链是包括供应、制造、销售活动在内的物流、资金流、信息流一体化的公司网络系统·为满足供应链的整体目标，供应链中的公司可适当调整产品的交易价格，如采用转移价格、价格折扣、返点等方法实现[1～7]·文献[1]给出了一个优化跨国公司税后净收入的跨国供应链模型，建立了一个启发式解法，对原问题调整后应用连续线性规划进行了求解·文献[2]研究了公司内转移价格作为一种协调机制时的作用·本文在文献[1，2]的基础上，分析并建立了一个单产品生产销售供应链中总公司的税后净收入优化模型；最后，应用改进的进化规划算法进行了仿真实验计算·1

In two of them, with the increase of the Coulomb interaction, the amplitude of the electronic oscilation is decreased and its shape deviates from the sinusoid type.

其中两个单重态的电子空间振荡幅度随库仑作用的增加而减小，同时振荡曲线的形状偏离标准的正弦曲线的形状。

Single scattering plays adominant role in most cases from specular reflection to diffusing reflection.

在镜反射直到漫反射的大多数常见面散射现象中，单次散射都起了主导性的作用。

Objective:To compare the efficacy of 2 revised long protocols by triptorelin in in vitro fertilization and embryo transfer and intracytoplasmic spermatocyte injection.

目的：比较两种修正的达必佳长方案在体外受精-胚胎移植和卵母细胞单精子显微注射中的作用。

The stochastic differential equation for structures with parametric and external excitations is established by using a concise derivation methods.

本文对单自由度结构在水平与竖向地震同时作用下的随机地震响应问题进行了系统研究。

The empirical result confirmed that the CARR model have the good explanation power to the stock index and the single stocks.

实证的结果也证实了CARR模型无论是对于股票指数还是单只股票交易量都具有了良好的解释作用。

The N-alkylation of N-monosubstituted sulfonamide s with alkyl halides promoted by KF using ionic liquids as reaction media was reported in this paper.

报道了KF作用下离子液体介质中N-单取代磺酰胺和卤代烃的N-烷基化反应，考察了4种不同结构的离子液体BF4、BF4和PF6对反应的影响。

The results showed that the enhanced stirring action of the liquid metals in weld pool due to peak-current fluctuating periodically under single-wire synergic pulsed MIG welding decreased temperature gradients and increased heterogeneous nuclei within the region of constitutional supercool...

试验结果表明，单丝复合脉冲焊接时，峰值电流周期性变化引起的熔池液体强烈的搅拌作用，使熔池的温度梯度降低，固液界面前沿成分过冷区中的形核核心增加，促进了焊缝组织的细化，提高了焊缝的强度和塑性。

Under the frame of Hamiltonian, the propagation of seismic wave is a symplectic group transformation with one parameter and consequently, the numerical calculation methods of the propagation ought to be symplectic method.

在哈密顿表述下，地震波标量方程描述的波场随时间的演化过程为波场在单参数辛群作用下的变换过程。因而在计算地震波场随时间的演化时，为保持系统的辛性质，应采用辛几何算法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。