If we are talking about new measures, they must be effective.
如果我们要采取新的措施，就必须有效。
Conclusions Multi-sectoral coordination and involvement of the whole society must be emphasized on AIDS prevention and care, and they must be effective and operable.
结论艾滋病防治工作必须强调多部门合作，动员全社会参与，并且可行、有效。
To be most effective, QE teams must be able to apply appropriate testing tools as they focus on system-level quality issues.
为了最有效地测试，QE团队必须在他们关注系统级质量问题时，能够应用合适的测试工具。
These mechanisms provide an effective framework for managing overcommitted memory, but they all share an important limitation: they must be configured and tuned by an external entity.
这些机制都为管理超量使用的内存提供了有效的框架，但它们都有一个共同的限制：必须由外部实体来配置和调优。
But while good coding practices help achieve accessibility, they must be applied with the right intentions to be effective.
尽管规范的编码有助于达到无障碍要求，也必须有正确的施行意图才会产生效用。
If business decisions are to be effective, workable and sound, they must be grounded in the present and the likely future.
如果要使商业决策有效、可行、可靠，就要基于当前和可能的未来思考。
The substantive issue must surely be whether Singaporeans have a right to a different view and whether they have effective avenues to express them.
从实质来说，真正的问题是新加坡人是否有权利采取不同的立场，并通过有效的途径加以表达。
To be effective motivators, managers must know what behaviors they want to motivate people to exhibit.
为了有效的激励员工，管理者必须知道他们想要激励员工展示什么行为。
Managers must put these new ideas into practice where they can be effective and mean something to the firm.
经理们必须把这些新思想付诸实践，以使它们对企业有效，并使企业有所收益。
Risks must be identified before they can be measured, and only after their impact has been evaluated can we decide on the most effective method of control.
风险在估计前必须先识别，只有估计出它们的影响后，我们才能决定出控制它们的最有效的方法。
The interventions must be highly cost-effective (see note to editors), and there must be strong evidence that they prevent disease and save lives.
这些干预措施必须具备很高的成本效益（详见对编辑的说明），同时具有可预防疾病并且挽救生命方面的强有力证据。
Doxycycline are safe antibiotic alternatives for young pigs but a veterinarian must be consulted to see if they would be effective against CL.
请注意，复方新诺明，强力霉素是安全的抗生素替代品，而是一个为年轻猪兽医必须咨询，看看是否还会对氯有效。
They provide a simple cost effective way to duplex flow equipment for applications where continuous flow must be maintained, with no flow interruption for down-side servicing.
他们使用在需要持续流动的应用中，提供了一种简便，低成本的方法，不会影响运行过程。
They provide a simple cost effective way to duplex flow equipment for applications where continuous flow must be maintained, with no flow interruption for down-side servicing.
他们使用在需要持续流动的应用中，提供了一种简便，低成本的方法，不会影响运行过程。
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