问题在于，有些国家可能并不具备实施严格控制所必须的基础设施，而它们将首次对核材料进行管理。
The problem is that countries that may not have the infrastructure needed to enforce stringent controls will be managing nuclear materials for the first time.
在峰会开幕一周之前，马来西亚终于采用一项法律，严格控制核有关材料的销售。
A week before the summit meeting, Malaysia finally adopted a law tightening control over the sale of nuclear-related materials.
我们的核材料没有发生过一起事故，这反映出我们的控制与管理机制是如何地有效。
There has not been a single incident involving our fissile material, which clearly reflects how strong our controls and mechanisms are.
乌克兰在内的大多数国家保证加紧原子核材料的控制，但并无签订具约束力的协力。
There were assurances from most nations, such as Ukraine, to do more to tighten controls over nuclear material, but no binding agreements. See article.
乌克兰等大多数国家确保加强对核材料的控制，但是没有签署协议。
There were assurances from most nations, such as Ukraine, to do more to tighten controls over nuclear material, but no binding agreements.
遗传分析表明新发现的不育材料均为由核基因控制的核不育材料。
The results of genetic analyses showed that nuclear gene(s) controlled the sterility of the 17 lines.
用半冬性品种济核02为供试材料，研究了化学控制条件下小麦基本苗对产量的效应。
The effect of density of winter wheat basic seedling on grain yield in condition of chemical manipulation was studied with semi-winter variety Jihe 02.
用半冬性品种济核02为供试材料，研究了化学控制条件下小麦基本苗对产量的效应。
The effect of density of winter wheat basic seedling on grain yield in condition of chemical manipulation was studied with semi-winter variety Jihe 02.
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