先

The first-in, first-out method or FIFO method of inventory valuation assumes that the first goods purchased are the first goods sold.

对存货估值的先入先出法假定最先购买的商品也是被最先卖出的。

In the ***, all types and fundamental principles of Radon transform are summarized systematacially. This *** starts from the general linear Radon transform, and then researches how to use the damped least square method to find the solution of the forward transform. However, the least squares smoothing effect will lead to a certain degree of trails in the data of Radon domain, which led to the application\'s limitations. After that the implementation in Radon domain and relative merits of linear Radon transform, parabolic Radon transform and polynomial Radon transform which have time invariance are introduced, the conjugate gradient method that can solve numerical solution is also given. And then the high resolution Randon transform is discussed, it introduces the regularization theory and Bayes principle into inversion, which successfully remove the negative affect caused by discrete Radon transform. Finally, we introduce the optimal weighting similar coefficient Radon transform, which adapt to the time variant quality of hyperbolic Radon transform.

本文系统总结了Radon变换的各种类型及其基本原理，从τ- p变换(即一般线性Radon变换)出发，研究利用阻尼最小二乘平方法求解其正变换，但是最小平方法的平滑作用会导致Radon域数据存在一定程度的拖尾效应，给这种方法的应用带来了很大的局限性；然后先容了具有时不变性的线性、抛物和多项式Radon变换在频率域的实现及其优缺点，给出了求解其数值解的共轭梯度算法；接着讨论了高分辨率Radon变换，它把正则化思想和贝叶斯原理引进到了反演中，很好的克服了离散Radon变换产生的截断效应对结果的不利影响；最后先容了适应双曲Radon变换时变性质的高分辨率最优相似系数加权Radon变换。

You Wait point." Flower chicken shook his head,"Little Jackrabbit, you let's wait for a moment, let I used to Chou Chou.

你慢着点。"小花鸡摇了摇头，"小兔崽子，你先等会儿，先让我过去瞅瞅。

It is natural to legislate ahead of the administration of great development of Western China.

西部开发先立法是法治经济的必然，开发先立法是世界经济发展的规律。

"I was here before you,so let me pass."

"我比你先到这里，所以让我先过去。"

I miss 3 months after can do on one year to say again first, I am returned inferior letter board of directors writes a letter to say, I go out to do a year first, still can come back.

后三个月我就想能不能先做上一年再说，我还给亚信董事会写信说，我先出去做一年，还可以回来。

Perhaps for this reason, many businesses change from FIFO to LIFO.

也许由于这一原因，许多企业从使用先进先出法改为使用后进先出法。

The average cost method is a compromise between LIFO and FIFO.

平均成本法是在先进先出法和后进先出法之间的一种折衷方法。

Tax liability in a period of rising prices. Under LIFO, the higher-priced goods are depreciated in

后进先出法更优越一些，因为在价格上升时期，采用这种存货核算方法可降低所得税税负，因为在后进先

FIFO LIFO Stacks in VB - This uses standard code for creating first in first out and last in first out stacks, ported to VB.

它使用标准的代码来创建先进先出和后进先出的堆栈，然后移植到VB中。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。