指数
- 与 指数 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The results showed that length from flag leaf pulvinus to spike base has the largest coefficient of variance of 42.1% and 37.2% in both DS and WW environments, respectively, while the spikelet per spike has the smallest CV of 6.4% and 5.7%. Under different water regimes, spike number per plant, effective spikelet per spike and peduncle length contribute a lot to the stable grain yield. Genetic diversity indices of DTI were from 1.95 to 2.07, with an average value of 2.02. Based on the DTI of agronomic traits, all accessions could be clustered into seven groups, the first and third groups are not sensitive to the water regimes, and the second group is more suitable for planting in dryland.
结果表明:在雨养和灌溉条件下,穗叶距的变异系数最高,分别为42.1%和37.2%,单穗总小穗数的变异系数最低,为6.4%和5.7%;不同水分条件下,植株稳产性主要受单株穗数、有效小穗数及穗下节长的影响;性状耐旱指数的多样性指数在1.95到2.07之间变化,平均值为2.02;根据性状耐旱指数将供试材料分为7个类群,其中第I、第III类群材料表现为对水分条件不敏感,而第II类群材料更适于在干旱条件下种植。
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Applying quadrat method,the vegetation of Yanchi county of Ningxia Ningxia Hui Autonomous Region was investigated to study the influence of different fencing time on community structure and biomass.
在宁夏自治区盐池县人工封育区采用样方调查法对不同封育年限封育区植被的群落结构和生物量进行调查分析,并运用丰富度指数、均匀度指数和综合性多样性指数分析生物多样性变化。
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As a result of further study, the reason of this tendency is recognizability of land-holder, including of the mentality of grudge the land, the reaction to national land policy, and infirm domino effect of the cropping, and so on. 3 Besides the above, this paper also takes an enlarged study of LUDA successfully such as the application of LURBI in application of arable land price valuation, basic farmland protection, forecasting of cultivated area requirement, even other related application.
在土地利用程度评估的扩展研究中,本文对土地利用率产出指数和效益指数在土地利用规划和农用地估价中进行了尝试性的运用,结果表明,土地利用率三指数在区域土地利用内涵挖潜、用地预测、耕地保护、农用地分等定级及用估价等方面可以广泛采用。
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Using a variety of diversity indexes to study the diversity of grasshopper in different habitat region, the results showed that diversity indexof 5 kinds of habitats has the order: crude redeposit broad-leaf weed-tree forest>farmland region>artificial larch tree>lakefront wetland>cutting blank.
采用各种多样性指数对不同生境蝗虫多样性进行了研究,结果显示,Shannon-wiener多样性指数的排序情况为天然次生阔叶杂木林>农田>人工林>湖边湿地>采伐迹地,Pielou均匀度指数变化和H′变化较为一致,相关系数为0.918,达到了显著性水平。
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This study measured the isovolumic contraction time , isovolu-mic relaxtion time and ejection time of CCP group and normal contrast group. Late,tei index was calculated, relationship between Tei index and LV function index such as ejection fraction ,the ratio of transmitral peak velocity at early diastole to transmitral peak velocity at late diastole etc.
本研究通过对正常对照组与肺心病病例组使用频谱多普勒超声心动图测量ICT、IRT、ET时间计算Tei指数,观察肺心病左心室Tei指数变化并分析其与超声测定的心功能指标EF、E/A等相关性,探讨Tei指数评价肺心病左心室整体功能的价值。
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At the lower generation (C5) of the autotetraploid eggplant, plant shape index and the ratio of the well-balanced plants (9.19%) are low. The average shape index for 12 strains of the three different female parents is 0.4779. But its genetic rate is: h^2=96.39%±3.52%. Plant shape index shows strong minus correlation with average fruiting ability, it's relique interrelated coefficient is: r=-0.9989 and correlative heritability is: h=-95.22%.
同源四倍体茄子育种选择的较底世代(C5代)株形和结果正常的植株比例很低(9.19%),3个不同母本系的12个株系株形指数平均为0.4779,株形指数的广义遗传率h^2=96.39%±3.52%,株形指数与植株平均结果数呈极强的负相关性,遗传相关系数r=-0.9989,相关遗传力h=-95.22%。
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Since 1997, the trend of deflation has been appeared in our country , the commodity retail price index, the residents consumption price index and the production material trade price index all have been appeared to be negative growth, the increase extent of money supply and the money circulation velocity also have been appeared to decline.
1997年以来,我国出现了通货紧缩的趋势,商品零售价格指数、居民消费价格指数、生产资料批发价格指数均出现了负增长,货币供应量增幅和货币流通速度也出现了下降的趋势。
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Based on choosing contrast and definite water conditions, we suggested that relative mean yield of all irrigation treatments, revisionary drought yield index , revisionary water yield index , sensitivity index of stages and revisionary yield index could be used to identify yield, drought resistance, water use efficiency, water sensitivity and water adaptive.
提出在合理选用对照种和明确水分鉴定条件的前提下,采用干旱产量指数修订值鉴定品种的抗旱性,用丰水产量指数修订值鉴定各水分条件下品种的水分高效性,用各水分条件下品种的平均产量相对值鉴定品种的高产性,采用阶段敏感指数鉴定不同生育期的水分敏感性,采用产量系数修订值鉴定品种的适水性。
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On the basis of comprehensive analysis of environmental factors that influenced the growth of Robinia pseudoacacia ,seven factors were picked out and used for site index,equation construction by using ...
在综合分析影响刺槐生长发育的环境因子基础上,选择了7个立地因子,运用数量化理论Ⅰ方法,建立与立地指数的回归模型,经减少项目法筛选出包含5个因子的立地指数最佳预估方程,编制了数量立地指数得分表。
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Based on systematic analysis, nine seismometry parameters that response earthquakes well in North China are selected, which are seismic frequency, seismicity scale, mf-value, b-value, D-value,η-value, seismicity intensity entropy and seismicity time entropy. Using synthetic anomaly index method, we calculated their seismic anomaly index values separately and synthesized these values into a chronogenesis curve. After studying its short-term anomaly characteristics to earthquakes, the criterion index for M≥5.8 earthquakes in North China is obtained. The R-value test indicts that it has good prediction effect.
在系统分析并筛选出华北地区地震频度、地震活动标度、mf值、调制比、b值、D值、η值、地震活动强度熵和地震活动时间熵等映震较好的9项测震学参数基础上,应用综合异常指数方法,分别计算了它们各自的地震异常指数时序值,进而合成得到华北地区测震学综合异常指数时序曲线,通过研究其地震短期异常特征,给出了华北地区M≥5.8地震短期综合预测的判据指标,经R值评分检验表明,该指标具有较好的地震预测效能。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。