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有效技术途径     
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  effective technical way
     In recent years, the anti-stealth radar technology has been to the research key point and has received attention from the various countries, and due to the merit, meter-wave radar becomes the effective technical way with recognition and good prospects in each kind of anti-stealth technology.
     近年来,雷达反隐身技术成为了世界各国关注和研究的重点,在各种反隐身技术中,米波雷达因为其本身的优点成为公认的、具有发展前景的有效技术途径
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     The homogeneous, filled and pressure ignition combusting mode in diesel engines is an effective technical way to conform to future more rigorous emission regulations.
     柴油机均质充量压燃着火燃烧方式是满足未来严格排放法规的有效技术途径
短句来源
  effective technology way
     Study on the effective technology way for mining methane in low permeability coal seam
     低渗透煤储层煤层气开采有效技术途径的研究
短句来源
  effective technical access
     Effective Technical Access of Coal Slurry Comprehensive Utilization Slurry Coal Water Mixture Combustion for Power Generation
     煤泥综合利用的有效技术途径——煤泥水煤浆燃烧发电
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  “有效技术途径”译为未确定词的双语例句
     A new kind of high quantum efficiency PtSi infrared detector, namely PtSi/Porous Si detector, is introduced.
     采用多孔PtSi结构是提高PtSi探测器量子效率的有效技术途径。 介绍了一种高量子效率的PtSi红外探测器,即多孔PtSi红外探测器。
短句来源
     The expression of PS1TP1 protein affected the expression spectrum of hepatocyte.
     PS1TP1基因的表达对于肝细胞基因表达谱有显著影响。 DNA芯片技术是分析反式调节靶基因的有效技术途径
短句来源
     The firing technology of double cyclic systems and variable firing rate is an effective technical method to enhance the hit probability of rifles.
     双循环变射频发射技术是提高步枪命中概率的有效技术途径
短句来源
     As an effective method to evaluate soil erosion and sediment source, 137Cs nuclear tracing technique can provide independent soil erosion , sedimentation data and spatial distribution information of soil erosion.
     采用137Cs示踪技术进行区域土壤侵蚀强度测定,能够提供独立的土壤侵蚀和堆积数据以及空间分布的信息,是评价土壤侵蚀和泥沙来源的有效技术途径和方法。
     It showsthat to spread the chaff cloud near the surface of ground is a useful approach to interferean 8 mm wave。
     指出在近地面高度抛撒箔条云是干扰8mm波的有效技术途径
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    Based on the fundamentals of heat transfer and a great number ofexperiments,this article explains an economic and effective way in impro-ving the heat transfer function of the fin-tube type water-air radiator com-ponents.By changing the structure and the geometric sectional form of thefins,the airflow is cut off and seperated time and again while it passes thecascade passage formed by the tube and fin without increasing the airflowrate U and Reynolds number Re.In this way the airflow boundary layeron each side...

    Based on the fundamentals of heat transfer and a great number ofexperiments,this article explains an economic and effective way in impro-ving the heat transfer function of the fin-tube type water-air radiator com-ponents.By changing the structure and the geometric sectional form of thefins,the airflow is cut off and seperated time and again while it passes thecascade passage formed by the tube and fin without increasing the airflowrate U and Reynolds number Re.In this way the airflow boundary layeron each side of the fin is thinned and even eliminated so that the air heatextraction α_a is increased and heat resistance is reduced.Therefore heattransfer coefficient K will be increased markedly.Moreover large quantity ??of nonferrous metals will be saved due to the reduction of the volume andweight of the radiator components.

    本文根据传热学基础理论并在大量试验的基础上,阐述了提高管片式水-空气散热器元件传热性能的经济而有效的技术途径,采用改变助片(散热片)的断面几何形状和肋片结构的措施,使气流在管、片所组成的栅栏式通道中流过时,在不提高空气重量流速U及雷诺数Re的条件下,使气流不断地被切断和分离。以此来减薄和消除肋片两侧平面的气流附面层,强化空气换热系数α_a,降低肋片的热阻,从而显著提高传热系数K值。因而可以减小体积和重量,节省大量有色金属。

    Based on the field measurements of No. 8027 longwall face of Wangcun Coal Mine, this paper attempts to give a description of the planar FEM study of the basic strata behaviors of the hard roof after injecting pressured water prior to mining for induced caving. The study reveals that after the pre-injection of the pressured water the load on the powered face supports and the peak in-situ stress of the rock mass have been reduced remarkably and the face support performance has been improved effectively. These...

    Based on the field measurements of No. 8027 longwall face of Wangcun Coal Mine, this paper attempts to give a description of the planar FEM study of the basic strata behaviors of the hard roof after injecting pressured water prior to mining for induced caving. The study reveals that after the pre-injection of the pressured water the load on the powered face supports and the peak in-situ stress of the rock mass have been reduced remarkably and the face support performance has been improved effectively. These indicate that the method of induced caving of hard roof by pressured water pre-injection is effective to tackle the problem of the hard roof strata control.The study also shows that the height of the fractured zone is closely related to the caving height of the roof in the goaf, while the rational height of the pre-injection of pressured water must be approximately the same as that of the caving height of the roof to be caved in the goaf. The strength of the elastic energy accumulated in the coal seam is reduced after the pre-injection of the pressured water, therefore the method can also be used as an effective measure for the prevention of the rockbursts.

    本文以王村矿8207工作面坚硬顶板预注压力水试验的实测资料为基础,通过平面有限元分析,探讨了顶板注水后工作面矿压显现的特点。研究表明,顶板注水后,支架载荷、岩体应力峰值都有明显降低,对改善工作面支护状况有显著的效果,是控制坚硬顶板的有效技术途径;顶板破坏区的高度与老塘冒落高度有密切的关系,合理的注水高度应与老塘已有的冒高接近;顶板注水后使煤层弹性能量积聚程度减弱,可作为防治冲击地压的有效措施之一。

    Four main obstacles of sexual hybridization in sugarcane i.e.the limitation of germplasm quality; flowering season non-syncronizaton between wide species and cultivated varieties; difficulties in booting and flowering of female parent and unfavourable winter low temperature for anther development and seed setting could not easily be overcome. The effecient approach for overcoming them, by using the predominance of climate and germplasm resources under Yunnan's stereoscopic agriculture, have been found after...

    Four main obstacles of sexual hybridization in sugarcane i.e.the limitation of germplasm quality; flowering season non-syncronizaton between wide species and cultivated varieties; difficulties in booting and flowering of female parent and unfavourable winter low temperature for anther development and seed setting could not easily be overcome. The effecient approach for overcoming them, by using the predominance of climate and germplasm resources under Yunnan's stereoscopic agriculture, have been found after probing into the essence of things at 8 places in 20 years. In this paper two major problems of them are discussed; 1. the relationship between photo-thermosensi-tivity for pollen germination and Ruili' s biotopic factors; 2. efficient utilization of "thermoperiod effect" theory for pollen development in Ruili's winter. In addition, the special significance of breeding base for inland sugarcane is also evaluated.

    种质质量的局限性,栽培种与野生种杂交花期不遇,重要母本不易孕穗开花,冬季低温对花粉发育及杂交结实不利,是甘蔗杂交育种技术较难突破的四大障碍因素。本项研究经22年8个点的长期探索,在云南高原立体气候条件下,利用气候与种质资源优势,找到了基本能克服上述障碍因素的有效技术途径及较为理想的内陆型甘蔗杂交育种基地—瑞丽。本文着重讨论了难开花品种花芽分化的感光感温特性与瑞丽生态因子的关系;花粉发育的“温周期效应”原理在瑞丽冬季条件下的应用价值。还评价了瑞丽内陆型甘蔗杂交育种基地的特殊意义。

     
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