迄今为止

The BP network employed in this research is one of the most widely-used and popular common network s up to now.

本研究所用的BP网络是迄今为止用得比较广泛和流行的最普通的网络。

The transformation of Communicant Center to Audience Center is a basic trend of development of the mass communication in the West up to now. Since the beginning of 1980s, the seeds of Audience Center have appeared to some extent in mass communication in China; however, a complete Audience Center has not been found so far.

由传者中心向受众中心转移，是目前为止西方大众传播事业发展的基本趋势。80年代以来，我国大众传播事业亦出现一定程度上的受众中心之萌芽，然迄今为止，真正的受众中心远未确立。

Great Union Development Company was established in 1998, accumulated many years of experiences in producing high quality ribbons.

丰明织带有限公司成立于1998年，迄今为止已累积了生产各类高级织带的丰富经验。

Of the composite indicator of economic development level is the traditional GDP, although it is recognized that use it as the only indicator to measure the level of development is one-sided, but it still is by far the most important of human economic activity reflected in a comprehensive index.

经济发展水平的综合指标是传统的GDP，尽管人们认识到用它作为衡量发展水平的唯1指标是片面的，但它仍是迄今为止反映人类经济活动最重要的综合性指标。

However, up till now, there is no concordant conclusion about this problem. In the past, there are several different theories, among which the most maturity one is the worm like chain model.

然而迄今为止，对于这个问题一直没有一个统一的认识过去对此有几个不同的理论，比较成熟的是蠕虫模型。

It is believed to be the first analysis video model conforming the Gamma distribution characteristic up to now.

作者认为这是迄今为止第一个符合视频业务Gamma分布及相关性特点的分析模型。

So far we've been talking about special relativity, which applies to objects moving at constant speed.

但迄今为止，我们谈论的一直是狭义相对论，这种理论适用于在速度不变的情况下移动的物体。

Both continuous paraxial approximation formula and two order discrete paraxial approximation formula are developed for one way wave motion transmitting apparently along normal direction based on kinematics model and local polynomial interpolation function.

引言 Clayton和Engquist在1977年和1980年提出的傍轴近似公式[1，2]是迄今为止最具代表性的局部人工边界条件之一。但是上述傍轴近似公式是从特定的波动微分方程出发推导建立的，因此其普适性受到限制。

For my sister with our boys, it's the best contraceptive ever invented.

对于和孩子们在一起的我的妹妹来说，这是迄今为止发明的最好的避孕方法。

The position of Mac of of Mac copyist is already confirmed in user memory, do not have which copyist to be able to score a success up to now.

Mac模仿者 Mac的地位在用户心目中已经根深蒂固，迄今为止没有哪个模仿者能获得成功。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。