世卫组织制定了技术准则，促进及时并有成本效益地使用现有预防和控制干预措施。
WHO has developed technical norms for the cost-effective and timely use of available prevention and control interventions.
经济效益是经济工作的中心，企业经营管理水平高低亦以提高经济效益为其最高准则和基本要求。
It's our central task to gain economic benefits and the increase in economic benefits is also the highest standard and the essential requirement for measuring the level of business management.
成本效益分比率准则——净利润现值低于零的无活力地区应该被承揽。
Cost-benefit ratio criterion----No activity where the present value of net benefits is less than zero should be taken.
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