What are the barriers faced in utilizing these approaches?

要运用这些方法,最大的障碍是什 麽 ?

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The several issues were to be faced in deep mining.

提出了现在深井开采中所需解决的几个问题.

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The windows of the mansion faced in the contrary direction.

这栋大厦的窗户相对而开.

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As another example, consider the situation faced in the beginning by scientists researching cancer.

再例, 设想研究癌症的科学家在最初时所面对的境况.

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The biggest obstacle Smith faced in launching StraighterLine was a process called accreditation.

在推出StraighterLine时,史密斯遇到的最大问题就是认证过程.

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Objectively, a two - sided poverty of ecology and economy is faced in Guizhou karst region now.

贵州客观上存在着生态与经济的双重贫困,石漠化现象严重.

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