防治适期,optimum control period
1)optimum control period防治适期
1.Field population dynamic andoptimum control period of Melanaphis sacchari in Chaoyang region,Liaoning.;辽宁朝阳地区高粱蚜田间消长规律及防治适期
2.The field population dynamic andoptimum control period of wheat aphids in Chaoyang Region, Liaoning;辽宁省朝阳地区小麦蚜虫田间消长规律及防治适期
3.Studies on economic threshold andoptimum control period of Echinocnemus squameus Billberg;稻象甲的防治指标和防治适期研究
英文短句/例句
1.Screening of control agent on Sclerotium rolfsii Sacc.and optimum control period蝴蝶兰白绢病防治药剂筛选及防治适期研究
2.Study on the Control Fungicides and Optimum Control Period of Rice False Smut in Hunan Province湖南稻曲病的防治用药及防治适期研究
3.Studies on predicting the optimum control period by the thermal constant for the tea looper, Ectropis obliqua Warren有效积温法预测茶尺蠖防治适期的研究
4.Preliminary Studies on Damage and Controlling Time of Corn Sheath Blight in Corn四川玉米纹枯病为害与防治适期研究初报
5.An experiment of suitable accession interval for controlling Bactrocera dorsalis Hendel by Methyl Eugenol诱蝇醚防治柑桔小实蝇适宜添加间隔期的试验
6.Conflict of Laws in Application of the Criminal Law in the Prevention and Cure of SARS;防治“非典”中适用刑法存在的法律冲突
7.Prediction Model for Suitable Harvest Time of Chinese Cabbage Against Freeze Injury in Changzhi of Shanxi Province长治大白菜防冻害适时收获预报模型
8.The contracts were to be long-term and would apply to autonomous work teams.合同是长期的，并适用于自治的工作队。
9.Three-Dimensional Conformal Radiotherapy for 30 Patients with Pancreatic Cancer三维适形放射治疗30例中晚期胰腺癌
10.Clinical Studies on Children s Bronchial Asthma in Catabasis Treated with Fang Xiao Granule;防哮颗粒防治儿童缓解期哮喘的临床研究
11.The records provide a guide for timing control measure.这些记录可作为适时采取防治措施的指南。
12.This Law is not applicable to prevention and control of marine pollution, which is provided for by a separate law.海洋污染防治另由法律规定，不适用本法。
13.Psychoanalysis on Vocational Adaptation Disorder and Ways of Diagnosis and Prevention;职场适应障碍的精神分析及治疗与预防模式
14.Indications of Neuronosis with Acupuncture and Moxibustion;针灸防治神经系疾病的适应证及其优势
15.Dilemma Analysis of the Application of Article 74 of the Revised Water Pollution Prevention and Control Law新《水污染防治法》第七十四条法律适用之困境
16.Study on the suitable portion of Polyacrylamide to prevent Soil Erosion聚丙烯酰胺防治水土流失适宜用量试验研究
17.Evaluation on effect of feasible medical technique application in treatment of cardiovascular diseases in rural areas农村心血管疾病防治适宜技术推广绩效分析
18.The early definitions stressed a blend of biological and chemical control.早期的定义强调生物和化学防治结合。
相关短句/例句
optimum control stage防治适期
1.Studies on theoptimum control stage of rice green smut in late single planted rice fields;单季晚稻稻曲病防治适期研究
2.The results showed that the optimum control state is larvae and theoptimum control stage is the young instar of larvae.对各虫态进行了大量的室内和田间药剂试验，结果表明：最适防治虫态为幼虫，防治适期为低龄幼虫盛发，及在晴天进行防治时以１７∶００时后喷药效果最
3)optimum control time防治适期
1.On the basis of thorough investigation on the fluctuation of important pest insects with piercing and sucking mouthparts in flower shrubs in gardens of Tianjin,theoptimum control time was determined.在查清天津市园林主要花灌木刺吸口器害虫桃粉蚜、绣线菊蚜、棉蚜和山楂红蜘蛛发生消长规律的基础上 ,确定了防治适期和结合点 ,筛选出 10 %吡虫啉、绿灵、蚧螨灵、 1。
4)Appropriate period prevention适期防治
5)vulnerable period防治方法与适期
6)controlling effect and best preventive time防治药剂与适期
延伸阅读
欧洲式期权、美国式期权与亚洲式期权欧洲式期权、美国式期权与亚洲式期权【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期，过了失效日后，权利即行作废。一些期权规定权利仅能在有效期的最后一天执行，这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行，这种期权被称为美国式期权(一~oPtions)。值得指出的是，虽名为欧洲式或美国式期权，但已无任何地理上的意义。由于欧洲式期权的规定过于严格，又出现了一种“改变的欧洲式期权”，它允许期权在一定的时间范围内进行交易。可见，美国式期权为期权购买者提供了更多的选择机会，因此，它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国，所交易的期权均以美国式为主，欧洲式期权虽仍存在，但其交易量已比不上美国式期权。在so年代末期，市场上又出现了一种所谓亚洲式期权(asian ontions)，但也无地理上的意义，其差别主要在于履约价值(exe而sev公此)的计算。以买权为例，无论是美国式期权或是欧洲式期权，执行权利所能得到的履约价值均为当时标的物的市价减去履约价格，再乘以合约所定的数量，但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止)，减去履约价格，再乘以合约所定的数量。
