国际能源机构昨日下调了2009年石油需求展望。
The IEA yesterday revised downward its demand outlook for 2009.
最后从结构、成分、颜色、透明度、硬度、韧度及块度等对南郑蛇纹石玉进行了客观分析及质量评价，并对其开发前景进行了展望。
Last, Nanzheng Serpentine's quality evaluation was infected by it's structure, component, color, transparence, hardness, resilience and size and it's the foreground of developing was prospected.
介绍了目前伊利石在开发利用钾方面的现状，展望伊利石的开发前景。
The article introduces the actualities of illite in utilizing potassium and analyses the exploiting prospects of illite.
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