有限地

However, it takes too much time and space for simulating a model with a relative large scale. A pseudospectral time domain method has the advantage of saving time and computer memory for the same simulation accuracy as that of FDTD.

通常采用的时域有限差分法在网格足够细的情况下能够精确地模拟井中雷达，但对于相对较大的模型，要得到较好的精度其所需要的时间和计算机内存都非常大。

This model helps managers charged with allocating marketing dollars towards customer with greatest incremental profit and helps consumer reasoningly making decision.

期望能够帮助企业将有限的营销资源分配给那些最可能为企业带来利润的消费者，同时帮助消费者更加理性地进行决策。

Simulation results show that the average dissipated energy decreases by 29% in RESEE compared with directed diffusion, and the lifetime grew by 125% at the network size of 400. Residual energy distribution maps also prove the energy equilibrium characteristic of RESEE.

仿真结果表明：当节点数为400时，RESEE较定向扩散路由协议的节点平均能耗降低29%，网络寿命上延长125%，节点剩余能量分布曲线证明RESEE能更均衡地利用有限的能量。

In order to select optimal grid and good computation efficiency to recover the entire signal, aiming at the Ricker wavelet commonly used in forward modeling, we analyzed the alias and signal restoration problem in finite-difference method based on spatial sampling theorem and seismic wave traveling regulation in media with different velocity, to derive quantitative relationship among the modeling grid size, minimum velocity of model layer, and recovered main frequency of wavelet.

为了选择最佳的网格尺寸以及以最小的计算量完整地恢复出信号，针对地震波场正演模拟中经常使用的Ricker子波，根据空间采样定理和地震波在不同速度介质中的传播规律，分析了有限差分算法中的假频和信号恢复问题，推导出模拟网格尺寸、模型地层的最小速度和能够恢复的子波主频之间的近似定量关系，并用数值算例验证了这一关系。

If we physically knew that five skandhas are empty and vanity are form, feeling, perception, impulse and consciousness, which are unworthy of seeking by time and energy, as long as meanwhile we could maintain basic living condition and practice hard in our limited life, then we would discover that it is unnecessary for us to toil all day as horse and that it is not so expensive to maintain life's basic elements.

如果我们真正地了解到五薀皆空，色受想行识俱为虚妄，不值得我们花太多时间及精力去追求，同时，我们只要能维持基本的生活就能保住性命，并且在有限的时空中努力修行的话；那麼，从中我们就会发现，维持生命的基本要素其实并不是那麼的昂贵，并且也不需要我们累得像一头牛似的整天劳动个不停。

Though my mind is limited and my nature is corrupted by sin, God has found a way to speal graciously and truthfully so that I can understand him.

虽然，我们的思想是有限的，我们的本性是有罪的，但神却仁慈幷诚信地使用这方式来向我们说话。

Though my mind is limited and my nature is corrupted by sin, God has found a way to speal graciously and truthfully so that I can understand him.

虽然，我们的思想是有限的，我们的本性是有罪的，但神却仁慈并诚信地使用这方式来向我们说话。

Furthermore,Google is tiptoeing into the country with only ahandful of services.

而且，Google只须提供很有限的服务，就悄悄地进入了中国市场。

Furthermore, [gm99nd] is tiptoeing into the country with only a handful of services.

而且，[gm99nd]只须提供很有限的服务，就悄悄地进入了中国市场。

Fractal theory quantifies these phenomena mainly by ascertaining their fractal dimensions.Box-counting algorithm is the one most practical and also most frequently adopted method.The traditional box-counting algorithm is based on the grid document and has some serious shortcomings,such as the distortion of the image being enlarged,the trivialness of the process and the finite of the iterative degree,etc.The vector box counting algorithm developed in this paper takes vector document as the carrier and has three advantages.

传统的计盒算法是基于栅格文件的方法，由于其存在图像放大后失真、过程繁琐和迭代次数有限等缺陷，因此为了准确简单方便地进行分维计算，开发了一种以矢量文件为载体的矢量计盒算法，并详细阐述了这种算法的数据结构、处理流程和主要函数，同时以Koch曲线、骨肿瘤边界及水系证明了矢量计盒算法的准确性和优越性。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎