The leaf, then, is a resilient distribution network—one whose principles could be applied to, say, electricity grids.
叶脉是一个弹性很强的分布性网络,这种原理可以应用到电网建设。
Look at a fern leaf, a cauliflower, and a magnified snowflake to see this distribution of sizes graphically.
看看蕨叶、菜花和放大的雪花,我们能从图形上看到尺寸的分布。
In the plant organs, the stomatic distribution characteristics of leaf epidermis may be taken as an evidence of plant classification.
在植物不同的器官中,叶表面的气孔分布特征可以作为植物分类的佐证。
The light distribution within the canopy is subject to the leaf area index and the extinction coefficient.
光在冠层内的分布,受叶面积指数和叶片消光系数支配。
The distribution of mineral nutrient elements was different in different leaf position, main leaf veins and soft leaves.
各种矿质元素在不同叶位以及同叶位的中肋和软叶中的分配均有所不同。
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.
模型对冬小麦—夏玉米轮作体系作物叶面积指数、作物系数、根系生长与分布进行了模拟。
The results are as follows: The distribution pattern of larvae is aggregative ( negative binomial distribution) . The aggregation dose not change with the densities of population of leaf miner.
结果表明:烟草潜叶蛾幼虫在田间呈聚集分布,聚集强度不因种群密度的改变而改变。
This is closely related to the distribution of leaf area of population.
这与种群的叶面积分布特征密切相关。
The contents and distribution of Pb, Cd and As in 497 flue-cured and 17 burley tobacco leaf samples collected from major tobacco production regions of China in 2004 were studied.
研究了我国烟叶主产区2004年生产的497份烤烟样品和17份白肋烟样品中铅、镉、砷的含量及分布特征。
The research results show that the space pattern of corn leaf mites has a gathering distribution form in lower density of mites while a uniform distribution in higher one.
玉米田叶螨空间格局,在较低螨口密度时呈聚集分布,在较高密度时呈均匀分布。
The vertical distribution and seasonal change of leaf are a were studied in intensive and extensive culture poplar plantations.
本文对集约经营与粗放经营杨树人工林分的叶面积垂直分布及其季节动态变化进行了对比研究。
Potted cultivation was used to study the chloride distribution in different tobacco plant organ, and the relation of chloride content with soil, applied fertilizer and irrigated water in tobacco leaf.
应用盆栽法研究了氯在烤烟中的分布以及土壤、施肥与灌溉水含氯量对烟叶氯含量与分布的影响。
On the distribution of the DMW, the stem branch is first, the boll second, the leaf third.
在干物质分配上以茎枝较多,经济器官居第二位,叶居第三位。
Distribution characteristics of leaf pubescence on leaf blade and hull pubescence on hull were observed under an optical microscope.
在光学显微镜下观察了粳稻叶片茸毛在叶面上的分布特征和谷壳稃毛在谷壳上的分布特征。
The deposition and distribution of droplets on the leaf is affected by the sprayer wind velocity of blower which is determined by wind capacity of orchard sprayer's blower.
雾滴在果树上的沉积分布主要受果园风送式喷雾机风机风速的影响,而风机的风速主要由风量来决定。
In a soil column culture and a field experiment, the comparison of root distribution of spreading-leaf and upright-leaf maize cultivars in Songnen Plain was studied.
采用土柱模拟栽培法与大田试验相结合的方法,对松嫩平原不同株型玉米的根系分布特征进行了比较。
The geometrical parameters of individual leaves of variable rate leaf spring affect not only the rate and the stress distribution of the spring but also the variable rate range.
变刚度钢板弹簧中各叶片的几何参数(片长,片厚)不仅直接影响着板簧的刚度和各片的应力分布,而且还影响着变刚度区间的大小。
The diameter distributions were simulated by the modified exponential distribution function for describing the stand structure, based on inventory data of broad-leaf forest in Changbai Mountain.
以长白山阔叶林三类清查资料为依据,采用修正指数分布式拟合并预测林分的直径分布。
The Leaf Angle Distribution (LAD) and Leaf Area Index (LAI) are important descriptors of the vegetation canopy.
叶面倾角分布(LAD)和叶面积指数(LAI)是植被冠层结构的重要参量。
The result showed that the light distribution in the canopy were obviously affected by the leaf area index (LAI), the structure of canopy, solar radiation and its apparent movement, etc.
结果表明:梨树叶幕光能分布状况直接受叶面积系数、树冠结构、太阳位置及光强的影响。
The aggregation indices and Taylor's power law are used to test the spatial distribution of the third generation larvae of leaf miner in the tobacco fields.
本文就烟草潜叶蛾幼虫空间分布型及其垂直分布规律进行了探讨。
The aggregation indices and Taylor's power law are used to test the spatial distribution of the third generation larvae of leaf miner in the tobacco fields.
本文就烟草潜叶蛾幼虫空间分布型及其垂直分布规律进行了探讨。
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