Meanwhile, the recovery of phosphorus is quite high in the process without foreigh-metal impurity and pollution.

同时，工艺过程中可获得较高的磷收率，且无其它有害杂质及金属元素引入其中，不产生环境污染。

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After our country entering WTO, the libraries of the institutions of higher learning are facing new situation and tasks in the construction of foreigh periodical resources.

我国加入WTO后，高校图书馆外文期刊资源建设面临新的形式和任务。

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Foreigh country friends will arrive in Beijing tomorrow morning.

外国朋友将于明天上午到达北京。

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