In this paper, double cylinder shell structure with stiffening ribs is used to solve some problems about the impulsive environment of underwater explosion for submarine structure.

本论文以双层加筋筒形结构为主要研究模型，探讨了水下爆炸作用下潜艇结构冲击环境研究的如下几方面的问题。

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This paper discussed about the basic conditions, contents, methods and problems required in the expressway landscape and environment design.

研究了高速公路景观与环境设计的基本要求、内容与方法及应注意的问题。

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Find the origin of your problems to either fix it or eliminate it. If it's a relationship, you might have to talk to the person about her behavior or make changes to your environment.

找到问题的来源，然后解决它或去除它。如果是人际关系的问题，你可能需要同某人谈谈她的行为或针对你的环境做出一些改变。

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Media coverage of local industrial pollution problems is encouraged by the government of China, to show that they care about the environment.

FORBES: Magazine Article

They are also two generations who are deeply attuned to the problems facing the environment and the need for the government to make smart choices about education and technology that will help them and their children survive in a new economic world that provides less stability and requires more adaptability than the one of their parents.

CNN: Generations X and Y start to rule politics