查询词典 feature-length

The response of Pn to instantaneous lighfflecksdepended on induction state and lightfleck length;full induction shoots could response morerapidly than low or non-induction shoots;and the increase of lightfleck length could raise photoinduction thus to increase Pn.

针叶Pn对单个瞬时光斑的响应与光斑前的光诱导状态和光斑时间长短有关，充分诱导的针叶Pn光斑的响应要敏捷得多，光斑时间延长可提高光诱导状态。

White sesame E-zhi NO.2 and black sesame Zhong-zhi NO.9 were sowed at intervals as comber-sesame and autumn-sesame. The temperature and sunlight-length of different growing-stage. The result showed that seedling-stage and bud-ding-stage were temperature-sensitive and weak phototonus and temperature was the main factor in the compositive effect of temperature and light. The temperature range of 27~31℃ was optimal for sesame to produce more flowers and prolong the flowering days, but the length of flowerig-stage and practical sunlight-hour had no correlativity.

用白芝麻品种鄂芝2号和黑芝麻品种中芝9号分期进行夏播和秋播，使两个品种各生育阶段处於不同的光温条件下，用试验当年相应时段的温度和实际日照长度对芝麻各生育阶段的发育特性进行相关分析结果表明：芝麻苗期和蕾期感温性强，感光性较弱，在光温综合作用中，温度是主要因子；芝麻开花最适应的温度为27~31℃，该温度有利於多开花和延长开花期天数。

In order to judge the grade of pimento, some parameters are extracted from two-dimensional image of pimento. These extracted parameters consist of length, width, perimeter, projected area, projected area to squared perimeter ratio, and width to length ratio. The extracted parameters and grade of pimento judged by experienced workers are used as input and desired patterns to estimate the connection weights of neural network. In this paper, a three-layer feed-forward neural network and back-propagation learning algorithm are suggested for the shape and size grading of pimento.

本文以青椒为对象，首先利用数位影像处理技术从人工分级后的各等级产品的影像中萃取出周长、投影面积、长度、宽度、投影面积对周长平方比与宽度对长度比等可作为判断青椒等级的分级准则，再利用多层前馈式类神经网路来模拟农产品的分级作业，并采用反向传递演算法学习各项分级准则与等级判断结果间的关系，以量化了解各项分级准则对等级判断结果的影响程度。

The latest experimental results of the focusing perfermance of the compound high-energy X-ray lens is designed with PMMA with the parameters of 40 plano-concave elementary lenses positioned in line with axial symmetry, 200 μm radius of the concave surface, 0.15 nm working wavelength, 0.5 mm geometrical aperture and 8 mm length of the compound lens and 1.3 m focus length, are briefly introduced.

报道了这种新型X射线光学元件聚焦性能的最新实验结果。设计的高能X射线组合透镜为聚甲基丙烯酸甲酯材料，包括40个相同的、顺序排布的平凹折射单元，折射单元的球面半径为200 μm，组合透镜的几何口径约为500 μm，长度约为8 mm，焦距约为1.3 m。简要描述了PMMA材料X射线组合透镜的制作技术和制作过程。并给出了X射线组合透镜聚焦性能测试实验系统和实验条件。

To investigate genotype×environmental temperature interactions for seed vitality QTL,a set of 282 F_(13) recombinant inbred lines derived from a japonica/indica rice cross were assessed for four seed vitality traits,i.e.germination rate,radical length,plumule length and plumule dry weight,at three temperatures of 25,20 and 15℃,respectively.

为了揭示基因型与环境温度之间的互作对种子活力的影响，利用1个粳籼交来源的重组自交系群体，采用纸卷法在15、20和25℃条件下进行发芽试验，考察了发芽率、芽长、根长及干重等4个种子活力相关性状。

The experimental results show that the precision of focal length and principal point is up to 0.1 pixel and the stardard deviation bar length is 0.046 mm.

标定实验表明，焦距和主点求解精度达到了0.1 pixel。对比测量实验表明，对长为750.607 mm的刚性杆进行长度测量，标准差达到了0.046 mm。

Pearson product moment correlation coefficients were used to analyze the effect of the age, cranial length and maxillary length on the molar's location in the maxilla.

但是后续的实验研究表明，上颌第一恒磨牙的位置并不是固定不变的，它会随着牙弓内、外因素的变化而发生位置的变化，影响错畸形的形成[1]。

Firstly, we studied the relationship between the amplitude of the wakefield and pulse length and an optimum length exists which equal to 〓 for Gaussian profile.

在MP-LWFA中，我们研究不同的脉冲长度、不同的脉冲间隔对产生尾流场的影响，着重讨论尾流场的饱和机制。

The influences of dispersion length and nonlinear length on the pulse′s self-similar evolution are studied,and the self-similar evolution conditions of the input pulse are obtained.

研究了色散长度和非线性长度对脉冲自相似演化的影响，获得了放大器中脉冲实现自相似演化的条件。

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。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。