Refuelling facilities will be needed for diesel locomotives and DMUs.
还要有为内燃机车和内燃动车组加油的设施。
The relative efficiency evaluation of decision making units (DMUs) in fuzzy environments is studied.
研究了模糊条件下决策单元的相对有效性评价问题。
A new type NET-DEA model is proposed to measure the efficiency of decision making units (DMUs) with correlative subsystems.
提出一类新的网络DEA模型，对带有关联子过程决策单元的有效性进行了评价。
For solving the problem which DEA only can use to evaluate relative efficiency, a method of choosing reference DMUs is proposed.
针对DEA只能用于相对有效性评价的不足，提出了遴选参考集的解决思路。
Described are the structures and main technical parameters of pa series 730,731,731.25 and 750 diesel motor cars and DMUs in Russia.
介绍了俄罗斯PA系列730型、731型、731.25型和750型内燃动车、动车组的结构情况及主要技术参数。
Finally, the definitions of fuzzy DEA efficiency of DMUs are given. The average confidence efficiency for comparison of DMUs is defined, too.
最后定义了决策单元的模糊DEA有效性以及进行有效性排序的平均置信有效性。
In Germany, the history of applying hydraulic transmission technology to DMUs is really longer than that of applying electric transmission technology.
在德国，内燃动车采用液力传动技术比采用电传动技术的历史要悠久。
Based on this, all the DMUs are classified into three types, which are interval DEA efficient, interval DEA partly efficient and interval DEA unefficient.
然后按区间效率值将所有决策单元分为三类，即区间DEA有效、区间DEA部分有效和区间DEA无效。
Then the solution of the highest and lowest efficiency score of each decision-making unit (DMU) was discussed. So we can gain an interval efficiency score of each DMU and classify the DMUs.
讨论了DMU的最高效率值和最低效率值的求解，从而确定决策单元（DMU）的区间效率值，并依此对DMU进行分类。
Then the solution of the highest and lowest efficiency score of each decision-making unit (DMU) was discussed. So we can gain an interval efficiency score of each DMU and classify the DMUs.
讨论了DMU的最高效率值和最低效率值的求解，从而确定决策单元（DMU）的区间效率值，并依此对DMU进行分类。
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