The sample DEA has an active function on giving an order of units, risk evaluation, analyzing of DEA efficient units and forecasting the combination efficiency of some units.
基于样本的DEA方法在择优排序，风险评估，分析有效单元性质，预测组合有效性等方面具有积极的作用。
This form of layering does have its own drawbacks because its bakes in assumptions of location agnosticity and synchronicity of invocation into the higher order service units.
这种形式的分层有其缺陷，因为它假设高阶服务单元的位置不可知性和调用的同步性。
Departments of examination and approval must strengthen administration of the exhibition activities of the host units and sponsoring units, and maintain normal order in the holding of exhibitions.
审批部门要加强对主办单位、承办单位办展活动的管理，维护正常的办展秩序。
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