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They must have free ions in an aqueous system to work.

他们必须有自由离子在水溶液系统工作。

In Gaul Rufinus of Aquileia must be mentioned as the very free translator of Origen, etc., and of Eusebius's "History", which he continued up to his own date.

在高卢的阿奎Rufinus必须提到的非常自由翻译奥利等，以及优西比乌的"历史"，他继续了自己的日期。

But, he said, This is not a free lunch for the Arab world.

不过，他还表示，这并不是阿拉伯世界的一顿免费午餐。

Very small free-living arachnid that is parasitic on animals or plants; related to ticks.

寄生在动物和植物体上非常小的非寄生类蜘蛛纲动物；与扁虱有关。

This is the English player Jermaine Pennant, 26, who comes from Liverpool and arriving at the team Aragonese free.

萨拉戈萨已经开始加强2009-10赛季的阵容，从利物浦转会过来的英格兰球员彭南特以自由身价转会，他与萨拉戈萨签约三年。

"Of course, they're all joining the queue when all they have to do is form a community to get land for free," complains René Araneda, who heads a group of non-Mapuche farmers in Araucanía.

"当然，他们联合在一起所要做的就是争取无偿得到土地，"勒纳-阿拉内达抱怨道，阿拉内达是阿劳卡尼亚非马普利农民组织的领导。

In the"willow leaf"TEM horn, the characteristic impedance varies from 50Ω to the 377Ω free space impedance, thus its metal plates have shapes similar to willow leaf. The constant impedance TEM horn consists of two tri-angular metal plates, with it's characteristic impedance at arbitrary cross-section being a constant.

采用FDTD方法，对'柳叶'TEM天线、恒阻抗TEM喇叭天线及低频补偿TEM喇叭天线的反射特性、口面场分布、主轴辐射场特性、辐射场方向特性进行了分析，并对各自的特性进行了比较。

The energy eigenfunc-tions which can describe correctly the motion of the free particlein phase space have been established through the introductionof an modified Gaussian function with an arbitrary parameter.

通过引入一个含有任意参数的Gaussian型修正函数，确立了能够正确描述自由粒子在相空间中运动的本征函数。

This is a free game software, you can copy arbitrary and dissemination.

这是一个自由游戏软件，你可以任意复制并传播。

"Many people who care about civil society in China had high hopes for the visit" by Ms. Arbour, Ms. Hou said."But the authorities do not want free discussion of China's rights abuses."

侯夫人说："许多关心中国市民社会的人都对Arbour 夫人的访问抱有很高的期望，但当局不想就中国的侵犯人权问题进行自由的讨论。"

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。