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  “位宽度”译为未确定词的双语例句
     Thus it suits for most kinds of cache organization. Experiments on 12 Spec 2000 benchmarks show that on average 4-bit width VNVC can obtain the best improvement, providing 29.85% dynamic and 29.94% static power reduction.
     采用12个Spec2000测试程序的仿真结果表明,4位宽度的超窄数据可以获得最大的节省率,平均可节省动态功耗29.85%、静态功耗29.94%.
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     The length of stricture ranged from 1.5 to 5.0 cm,and the width from 0.1 to 0.5 cm.
     宽0.1~0.5cm,中位宽度0.3cm。
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     Methods There were 103 patients who accepted anterior cruciate ligament reconstructions with autogenous hamstring tendons for follow-up. Magnetic resonance imaging(MRI) offered the possibility of visualizing the bone tunnels from 12 to 18 months after surgery.
     方法103例自体腘绳肌腱重建前十字韧带的患者术后12~18个月进行MR检查,分别测量股骨隧道、胫骨隧道矢状位宽度并与术后1个月MRI中的骨隧道宽度对比。
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     Using ″Gate″ of Single Chip Microcomputer to Measure Width of Pulses
     利用单片机门控测量脉冲的宽度
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     GEOCHEMICAL POTENTIAL
     地球化学
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     prostrate,D.
     俯和 D.
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     Use of Gate of Arithmometer in Measuring Width of Impulse
     巧用定时计数器门控测量脉冲宽度
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     The height, α, and the width, b, of the superledges are about 320—850 and 1500—1800 A respectively.
     ,宽度b为1500—1800(?)
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  niche width
The niche width, proportional similarity of niche and the niche overlap of dominant species of dying trees were computed.
      
Species within host trees vary from winter to summer and all the species have their own niche width, proportional similarity of niche and the niche overlap.
      
However, grey squirrels were more tree specialists and had a narrower tree-species niche width than red squirrels, in particular making greater use of oak.
      
Distribution in the intestine, multiple infections, and niche width as related to scolex morphology are discussed.
      
Data on food habits and habitat preferences of four browsing herbivores (black rhinoceros, giraffe, gerenuk and lesser kudu) were analyzed to assess niche width for each species and niche overlap between pairs of species.
      
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  bit width
A better solution would use parallel output buses for and with a 7-bit width to prevent harmonics from falling in the passband.
      
A constraint for the ADDI micro-operator is that both operands have the same bit width.
      
A special data type has been defined that has the same bit width as the timer registers.
      
All of the timers and alarm provided by our interface are 32-bit width.
      
An output FIFO of 32-bit width will be used with a 64-bit intermediate buffer split into first and second words each of 32-bit length.
      
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During the nesting seasons in 1983 and 1984, the author had examined the breeding bird community of evergreen broad-leaf forest in Mt.Tiantong, Zhejiang Province. The transect count was used and the total of 1,285 bird detections of 13 species were used in this analysis.Field data on habitat utilization for each species (both vertical and horizontal species distributions, the diameters of branches which the bird perched on) were obtained and the distribution differences for each species on three niche dimensions...

During the nesting seasons in 1983 and 1984, the author had examined the breeding bird community of evergreen broad-leaf forest in Mt.Tiantong, Zhejiang Province. The transect count was used and the total of 1,285 bird detections of 13 species were used in this analysis.Field data on habitat utilization for each species (both vertical and horizontal species distributions, the diameters of branches which the bird perched on) were obtained and the distribution differences for each species on three niche dimensions were estimated with above figures and the table respectively. The community matrix and dendrogram were also made by Cody (1974) methods in table 2. and fig.3. In this paper, the author described the characteristics of each guilds of birds and discussed the significance of community matrix and dendrogram.

在1983年和1984年的繁殖季节,作者对浙江省天童山中常绿阔叶林内的繁殖鸟类作了测定。分析中使用了线路统计方法,并对13种鸟类作了1,285次观察。 作者在野外收集了每一个种在生境利用方面(包括种的垂直分布和水平分布,鸟类栖息的树杆直径)的数据,并在图1、图2和表1中列出了每一个种的分布差异。每一个种在这三个生态位维度上的生态位宽度值也分别列于上述的图表和表格中。由Cody(1974)介绍的方法,作者在表2和图3中制作了群落矩阵和树杈状图。 在文章的最后部分,作者描述了每一鸟类小派的特征,并讨论了制作群落矩阵和树杈状图的意义。

This paper is the fourth to be published in a series of studies on the stored product insect community ecology. The niche breadth of some major stored product insects and the niche overlap between them were measured with the data investigated from seven counties of Sichuan in 1983—1984. The niche breadth of three-dimensions (trophic, temporal and spatial) of Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Oryzaephilus surinamensis. Tyrophagus putreseentiae and Lariophagus distinguendus was firstly...

This paper is the fourth to be published in a series of studies on the stored product insect community ecology. The niche breadth of some major stored product insects and the niche overlap between them were measured with the data investigated from seven counties of Sichuan in 1983—1984. The niche breadth of three-dimensions (trophic, temporal and spatial) of Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Oryzaephilus surinamensis. Tyrophagus putreseentiae and Lariophagus distinguendus was firstly measured based on the niche breadth model given by C. C. David (1970): B_i=-sum from j=1 to R [N_(ij)/N_i Log_2(N_(ij)/N_i)]Log_2 R The results indicated that Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Tyrophagus putrescentiae are the stored product insects(mites) which do damage to stored grain for a long period and attack on many stored commodities, they distribute in a wide area. Sitophilus zeamais is the most important one, the efficiency of natural enimy appears weakness. The three-dimensions niche overlap among Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Oryzaephilus surinamensis, Tyrophagus putrescentiae and their enimies were measured based on the model given by Pianka (1973): O_(ik)=(sum from j=1 to S P_(ij)P_(kj))/(sum from j=1 to S P_(ij)~2 sum from j=1 to S P_(kj)~2)~(1/2) The results indicated that the trophic niche overlap between Sitophilus zeamais and Oryzaephilus surinamensis, Sitophilus zeamais and Tyrophagus putrescentiae, Oryzaephilus surinamensis and Tyrophagus putrescentiae are dominant, but that between Sitophilus zeamais and its senimy is less in temporal niche and larger in spatial niche.

本文是仓虫群落生态的初步研究之四,根据1983~1984两年从四川七市(县)进行定时定点系统调查和普查的资料,对仓虫群落中主要仓虫的生态位宽度和重叠进行了测定。首先,用C.C.David(1970)提出的生态位宽度模型:B_i=-sum from j=1 to R[N_(ij)/N_iLog_2(N_(ij)/N_i)]Log_2R测定了玉米象等主要仓虫的三维生态位(营养、时间和空间)宽度,其结果表明:玉米象、杂拟谷盗、麦蛾和腐食酪螨是为害时间长,分布区域广,为害储粮品种多的仓虫或仓螨,尤其是玉米象,而天敌对它们的抑制力则很弱。其次,用Pianka(1973)提出的生态位重叠模型:O_(ik)=sum from j=1 to SP_(ij)P_(kj)/(sum from j=1 to S)P_(ij)~2sum from j=1 to S_(kj)~2)~(1/2)测定了玉米象等主要仓虫的三维生态位重叠,其结果表明:玉米象和锯谷盗、玉米象和腐食酪螨、锯谷盗和腐食酪螨在营养生态位上的重叠程度较大;而玉米象和天敌在时问生态位上重叠程度最小,在空间生态位上重叠最大。

The Sawtooth oak(Quercus acutissima)forest community was measured by quarter point and quadrat methods.New patchness index has been suggested:L(i)=sum from J=1 to n(Px_(ij)-(1/n))~2.Mathematical express of L index is the covariance of the probability of plant population density disposing in i resource axis' j resource state and theoretical probability in i axis' j state when the population is regularly disposed,(j=1,2,…n;n=number of resource states).Dominant species in the shrub layer and herb layer were put...

The Sawtooth oak(Quercus acutissima)forest community was measured by quarter point and quadrat methods.New patchness index has been suggested:L(i)=sum from J=1 to n(Px_(ij)-(1/n))~2.Mathematical express of L index is the covariance of the probability of plant population density disposing in i resource axis' j resource state and theoretical probability in i axis' j state when the population is regularly disposed,(j=1,2,…n;n=number of resource states).Dominant species in the shrub layer and herb layer were put in four axes—light level(k axis),relative soil water content (Rw axis),soil fertility score(F axis)and soil nitrogen content(N axis) and studied.Each species' patchness index,niche breadth,niche overlap with other species have been analysed in the four axes.Shannon-Wiener diversity index(D)increases with the increase in abundance of resource, H'(Homogeneity)decreases with the increase in abundance of resource, their regression equation: D=0.4040-0.0211(?)+0.0248 F H'=1.112-0.1400 Ln Rw+0.00064N Biomass(W)regression equation: Herb layer:W=-12.30+4.070Ln Rw Shrub layer:W=-16.70-0.0735k+2.080Rw-0.1400F Quercus acutissima' seedling:W=-35.25+20.88LnN or W=2.476-0.0371Rw

用点四分法抽测崂山麻栎(Quercus acutissima)林,将获得的150个样点资料建立在通过群落郁闭度系数所反映的光照强度、土壤相对持水量、土壤肥力得分及碱解氮含量的四维空间上,构造了麻栎幼苗、灌木层,草本层及其优势种生物量预测方程;提出度量植物种群对资源选择性系数的新公式,并证明了它的实用性。本文详细探讨了林下优势种的选择性系数、生态位宽度和生态位重叠;指出影响麻栎幼苗生长及栎林群落生产量的限制因子;阐述了种类多样性和均匀度与环境间的关系。

 
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