到差

By applying the explicit and implicit Euler methods to the neutral delay differential equation, two difference equations of the numerical solution are obtained.

把显式Euler方法和隐式Euler方法分别应用到这个中立型微分方程，得到了两个关于数值解的差分方程。

A two-point measurement method is employed in which two known values of a differential input voltage are applied to the current-sense amplifier.

阿二点的测量方法是采用在两个已知的差分输入电压值应用到电流检测放大器。

In order to study the composition segregation region s in bulk metallic glass,small angle X-ray scattering technique and differential scanning calorimetry were used to investigate the evolution of microstructure in Cu55Zr30Ti15 amorphous alloy heated from 310 K to 783 K.

为了研究大块非晶合金中成分分离区的存在状态及其在晶化过程中的作用，应用小角X射线散射技术和差示扫描量热仪研究Cu55Zr30Ti15非晶合金从310 K到783 K之间微结构的演化情况。

However, the extent of its products make digital, resolution is not high, relatively low power densities, poor reliability shortcomings.

但其产品存在数控程度达不到要求、分辨率不高、功率密度比较低、可靠性较差的缺点。

The compact difference scheme for two dimensional Boussinesq equation is given on a staggered grid.

在交错网格上构造了求解非线性Boussinesq方程的紧致差分格式，此格式可以在只用到三个网格结点的情况下，达到空间四阶精度。

Then, confidence level distance and confidence level matrix are constructed and solved to complete the reasonable evaluation of particles weights.

首先，利用粒子残差实现采样粒子由状态空间到量测空间的映射变换；在此基础上，通过置信度距离和置信度矩阵的构建及求解，完成对于粒子权重的合理度量。

Based on the traditional geometric optics principles and the method of ray tracking, this paper reports the calculation of the aberration of the mode index lens when the collimated beam incidents upon it inclinely with an angle, and the divergency of the output beam from the MIL when it works as a collimator for the end-butt coupling between the semiconductor laser and the waveguide.

本文从传统几何光学原理出发，用光线追迹的方法来计算研究准直光束斜入射到模折射率透镜上产生的像差，以及当半导体激光器与波导端射耦合以MIL作为准直透镜时，输出准直光束的发散情况，并探讨MIL在集成光学频谱分析仪中作为准直或会聚透镜的适用性。

I will pay you back double for what you will lend me after I get my box.

我只借到了3500美元，还差3000美元。

On the condition of "many-head" and "small drive ratio",the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously.It has devoted to a new type hourglass worm_sphere double enveloping hourglass worm.

考虑到平面二次包络环面蜗杆传动在多头小传动比条件下根切与齿顶变尖的矛盾很难同时解决且啮合性能较差，介绍了一种新型环面蜗杆传动——球面二次包络环面蜗杆传动。

Poor quality food masquerading as balanced diets and expensive brands promising superior nutrition, yet leaving out vital ingredients to provide yet another solution product, have lead many to see through the marketing doublespeak and realise that profit, not their pets good health, is the manufacturers main concern.

质量差的食物均衡的饮食习惯和有希望的营养昂贵的品牌优势伪装，但留下了至关重要的因素，为市民提供另一人solution产品，已导致许多人通过营销欺人，并意识到看到利润，而不是他们的宠物身体健康，是制造商的主要关切。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。