utility mann.演各种配角的演员；杂务工
utilityn.效用；实用；公用事业（费）；[计]应用程序adj.多效用的；多功能的
Utility Installation for Private Project私人发展计划的公用设施装置
Utility Software for Scientific Research科研实用软件
utility-cost synthetic analysis method效用成本综合分析法
Utility Grade Multi-purpose Power Meter供电局机级综合测试仪
Utility Practical Transport Aircraft System通用运输机系统
Utility Tactical Transport Helicopter Company
Utility Function and Investors'Dealing Behavior
Utility Maximization and Constrained Optimization效用最大化与有约束最优化
UTILITY REPRESENTATION WITH RATIONAL PROBABILITIES有理数概率下的效用表示定理
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