An electron beam heating control method with controllable time zone and space zone belongs to material processing field.

一种时域和空域可控的电子束加热控制方法，属于材料加工领域。

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Second, we must strengthen institutional construction. We must supervise and inspect strictly each of the links from raw material production, processing, circulation to consumption.

第二，要加强制度建设，从原料生产、加工、流通、消费每个环节都要进行严格监督和检查。

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That is to say that this material has a very good use effect, but in the process of processing or there are many factors to consider and pay attention to the problem.

即是说这种材料有很好的使用效果，但在加工的过程中还是有很多考虑的因素以及注意的问题。

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Third party processing could ensure the material is enriched only to the point needed for civilian purposes, and below the level called for in nuclear weapons.

VOA: standard.2009.10.04

Iran says it has begun operations at two uranium mines and a uranium ore processing plant, furthering its capacity to produce nuclear material.

BBC: Iran unveils uranium activities at Saghand and Ardakan