A single level grey decision making model, which is aimed at some existing problems on present decision of purchasing equipments, is proposed and its applications are shown with examples.
针对目前设备采购决策中存在的问题，提出一种单层次灰色决策数学模型，并以实例说明其应。
The research and application status of high Al Zn alloy were surveyed. The research orientation in the future was proposed aimed at the existing problems in high Al Zn alloy application.
综述了高铝锌合金研究和应用的状况，针对高铝锌合金应用存在的问题，提出了今后的研究方向。
Aimed at the existing problems in current waste disposal, some Suggestions are proposed.
针对目前三废治理中存在的一些问题，提出了一些建议。
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