利用价值
- 与 利用价值 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This quadrature approach is of theoretical and practical value for the application of Radar and EW.
该正交采样技术利用多速率信号处理方法,可对ADC基带采样率内的任意带通信号得到其调制复包络输出,并具有很好的镜像抑制,在雷达和电子对抗信号处理中具有其实际的理论和应用价值。
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Based on the fact that it lacks of quantification about the theory at present, this paper puts forward the new idea about mechanism of system coupling using emergy method in the ecotone between agriculture and pasture in North China as an example, where has serious dilemma of economical and ecological.
以农牧交错带为例,针对在生态经济系统目前该理论的定量化方面研究不足的事实,提出用能值方法考虑农牧交错带系统耦合的机制,并指出农牧交错带系统耦合机制应建立在土地利用方式、子系统间能值转化过程和生态系统的能值储备上;同时影响系统耦合机制的主要因素有初级生产力的大小、畜牧业的内部结构和畜牧业的发展规模以及生态系统服务价值的大小。
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There is no doubt that China is a large small country, we must take a "Value and rational use of every inch of land."
毫无疑问,中国是一个大的小国,我们必须采取一种"价值和合理利用每一寸土地。"
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Therefore the main body of a book try to attain employment's objectives by probing the difficult teen-agers how much better to make use of the special field duties outside one's regular work value to help these to obtain employment coming idea and method coming the go into aiding case to a representative employment.
因此本文试图通过对一个典型的就业援助个案的研究来探索如何更好地利用专业的社会工作的价值理念和方法来帮助这些就业困难的青少年实现就业目标。
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In the paper, the new breakthrough characters are linked with the repitious technology innovation platform. On the base of relative uniformity of repitious and distructivty features, the success of distructive technology innovation projects can be same as a leap in the real option chain. An investment decision-making model is established for distructive technology innovation projects, and the investment decision-making features of distructive technology innovation project are researched.
3针对技术创新显现出来的新的突破性特征,本文将其与企业持续性技术创新的平台相联系,利用技术创新的持续性特征和突破性特征的相对统一性,将突破性技术创新项目的投资价值实现作为企业持续性技术创新实物期权链的一次跳跃,给出了突破性技术创新项目的投资决策模型,研究了实物期权方法下突破性技术创新项目的投资决策特征。
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Using environmental radionuclide 210Pb to study the soil erosion and sediment had great application value and potential. When the nuclide was settled on the surface with atmosphere, it was absorbed by the soil particle quickly. The soil erosion rate on the scale of 100 years was traced through the remotion of nuclide in soil and its regular distribution nude.
利用环境放射性核素210Pb来研究土壤侵蚀和沉积具有很大的应用价值和潜力,当核素随大气沉降到地表时,迅速被土壤颗粒吸附,通过其在土壤间的移动和有规律的分布模式可以示踪100年尺度上的土壤侵性速率。
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Ring-shaped structure as a kind of indication information has very important significance and value to ore exploration.
环形构造作为一种指示信息对找矿具有非常重要的意义和价值,借助于卫星遥感影像对研究区的环形构造信息进行了深入探讨与研究,首先对该区的环形构造信息进行了遥感解译,通过环形构造的影像特征及其与矿点的产出关系来探讨环形构造的控矿特性,并进一步分析其与成矿的内在成因,最后基于深入研究的基础之上,提出了充分利用卫星遥感影像环形构造信息展开矿产资源勘探的思路和策略。
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All-in costs.LIFE-CYCLE COSTING - A cost-analysis tool that incorporates the purchase price of a piece of equipment and all operating and related costs over the life of the item; including, but not limited to maintenance, downtime, energy costs, as well as salvage value.
产品生命周期成本法–一个成本分析的工具,不但分析公司设备的采购价格,也分析其使用年限间的运作及相关成本,包括维修、停机时间、能源成本等、以及废物利用的价值。
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A prediction model has been proposed to deal with threshold voltage shift as a function of 1MeV neutron flux and gate oxide thickness, and to deal with room-temperature annealing of threshold voltage shift induced-by 〓Coγ as a function of electric field and gate oxide thickness. The commonness and individuality of MOS device degradation between hot-carrier effect and ionizing radiation were investigated. The dependence of substrate current, gate current and threshold voltage shift due to hot-carrier on gate oxide thickness were simulated with MEDICI-2D simulator. The photocurrents of PN junction and bipolar transistor were studied. Their transient responses on varied bias voltages, pulse durations and absorbed doses were simulated. The influences of NPN base width on base and collector photocurrents were investigated. We also studied 1MeV neutron displacement damage in PN junction, and calculated reverse current leakage under the neutron flux of 2. 67×10〓 per square centimeter. 3 The study of nondestructive screening method for MOS radiation tolerance A theoretical and experimental study of nondestructive screening methods for radiation tolerance of nMOS and pMOS were firstly fulfilled. We determined the informative parameters pertinent to the method and proposed how to deal with experimental data and verify obtained results statistically, as well as make the required steps for nondestructive screening. Based on the experimental data of 180 samples of discrete pMOS devices, the relation between sample quantity and correlation coefficient, screening equation, and other significant results were obtained from the threshold voltage shifts of pre-and post-irradiation samples.
二、分立器件电离和位移辐射损伤响应研究在国内首次开展了电离辐射引起的氧化层阈值电压漂移和退火理论研究,编程计算了1MeV中子引起的MOS器件阈值电压漂移与中子通量及栅氧厚度的关系,计算了〓Coγ光子引起的阈值电压漂移及退火的时效曲线与纵向电场和栅氧厚度的关系等,对评估MOS型集成电路电离损伤和加固方法研究,以及论文中开展的MOSFETs无损筛选方法研究奠定了基础;分析了MOS器件热载流子损伤效应与辐射电离损伤效应之间的异同性,利用二维模拟软件MEDICI-2D模拟了衬底电流和栅电流,在不同栅氧厚度下随栅压的变化曲线,计算了热载流子效应造成的阈值电压漂移,研究结果对当前存在的以热载流子效应研究取代电离辐射损伤实验研究的设想,具有重要的参考价值;开展了PN结和双极晶体管电离光电流研究,计算了不同偏压、不同辐射脉宽和不同吸收剂量下PN结光电流的瞬时响应,计算了不同辐射脉宽下NPN晶体管基极电流和收集极电流的瞬时响应,以及基区宽度对NPN晶体管光电流的影响,研究结果对双极器件抗电离辐射损伤响应及加固方法研究具有重要意义;在国内首次开展了器件位移损伤的理论研究,分析了辐射产生的缺陷对电性能的影响,计算了注量为2.67×10〓cm〓的1MeV中子产生的缺陷对PN结反向电流的影响。
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6β-santonin could be selectively reduced and hydroxylated by the cell suspension cultures of P.acinosa, which would provide valuable intermediates for its further structural modification.
结论利用商陆培养细胞可对6β-santonin进行选择性还原及羟基化反应,可为其进一步化学结构改造提供有价值的中间体。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。