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有效期间
1、effective tactics───有效战术
2、effective measures───有效措施
3、modified duration───[财]修正的久期
4、cost effective───有成本效益的；划算的；成本效率；[计] 成本的有效的，效能价格合算的，价格可取的; [经] 本轻利厚，成本效果
5、effective───adj.有效的，起作用的；实际的，实在的；给人深刻印象
6、inferring duration───推断持续时间
7、duration───n.持续，持续的时间，期间；音长，音延
8、in duration───n.硬化；[医]硬结；顽固；无情
9、effective treatment───有效治疗
1、Shortest Effective Duration of Cyclosporin A Immunosuppressive Therapy for Allogenic Nerve Graft───同种异体神经移植中环孢素A的最短有效时间
2、Study on the Effective Duration of Niclosamide in Water and Soil───氯硝柳胺在水体及土壤中持效期的现场试验研究
3、Conclusions Long- term deep vein catheterization has long effective duration and low rate of embolism and infection.───结论长期深静脉留置导管使用时间长，栓塞率、感染率低，可满足血液透析要求，值得推广应用。
4、Effective duration of niclosamide and influencing factors in water and soil───氯硝柳胺在水体及土壤中持效时间及其影响因素的实验研究
5、authors, antibiotics should be prescribed for pregnant women only for appropriate indications and for the shortest effective duration.───作者认为，抗生素“应该是开具给有适当适应症的怀孕妇女，并给以最短的有效疗程。”
6、Effective Duration of Fungicides Protecting Pear Against Infection of Venturia Nashicola───几种杀菌剂防治梨黑星病的持效期的研究
7、duration of this package is 3 months, beginning on the date of the agreement.───该套餐有效期至协议签订之日起三个月。
8、Objective to study the effective duration of niclosamide and influencing factors in water and soil.───目的研究氯硝柳胺在水体及土壤中的持效时间及其影响因素。
9、Objective To study the field effects and effective duration of cypermethrin confected by chitosan against fly and mosquito.───目的观察壳聚糖复配的氯氰菊酯对蚊蝇的杀灭效果和药效持续时间。
1、Objective To study the effective duration of niclosamide in water and soil.
2、Methods The influencing factors to the effective duration of niclosamide in water and soil was investigated by the snail immersion method and the fish toxicity test .
3、Objective To study the effective duration of niclosamide and influencing factors in water and soil.
4、The PLD method for retrieval of apparent source time function (ASTF) is improved by reconstructing the criteria function to be used for determination of the effective duration time of the ASTF.