1)diameter distribution直径分布
1.The nonparametric kernel density theory and methods are introduced to model the diameter distribution of broadleaved Pinus koraiensis in Liaoning eastern mountains in contrast with the normal distribution and Weibull distribution.结果表明,核密度估计方法在模拟直径分布方面明显优于后者。
2.stand for water resource conservation,the growth process and diameter distribution characteristic of Larix Principis-rupprechtii Plantation in 10 years old were studied using stem analysis method of sample tree,which had two density structures(one was 2 600 per hm2,the other was 3 500 per hm2) in water conservation forest region of Wutai Mountain in Shanxi Province.hm-2)的人工林生长过程和直径分布进行研究。
英文短句/例句
1.Linear Expression of Natural Forest Diameter Distribution and Its Application天然林直径分布的线性表达及其应用
2.IAMETER DISTRIBUTION DYNAMICS OF STANDS IN AGROFORESTRY SYSTEM林农复合系统中林分直径分布动态研究
3.STATISTICAL ANALYSIS OF THE DEFECT AND DIAMETER DISTRIBUTION OF POLYCARBOSILANE FIBER整筒聚碳硅烷原丝直径分布和缺陷分析
4.Diameter Distribution of Main Tree Populations in Natural Secondary Forests in North Fujian闽北天然次生林林木直径分布规律的研究
5.Diameter distribution and antistatic property of PA6/Ag nanofiber含银PA6纳米纤维的直径分布及其抗静电性能
6.Study on the diameter distribution laws and its dynamics of Larix principis. rupprechtii Mayr plantation华北落叶松人工林直径分布规律及其动态的研究
7.velocity along rotor diameter速度沿旋翼直径的分布
8.Experimental study on the axial bearing capacity distribution of major diameter PHC pile大直径PHC桩竖向承载力分布的试验研究
9.Radial Distribution of Voidage in a Fixed Bed Reactor with Lower Diameter Ratio of Bed to Particle床层与颗粒直径比小的固定床反应器径向空隙率分布
10.An area about half-a-mile in diameter is surface strewn with blocks of magnetitite.在直径约1／2英里的地区的地表上有磁铁岩转石分布。
11.STUDY ON ATMOSPHERIC MICROBES IN SHENGYANGⅣ.SIZE DISTRIBUTION AND COUNT MEDIAN DIAMETER(CMD)OF AIRBORNE FUNGOUS PARTICLES沈阳市大气微生物的研究Ⅳ．大气真菌粒数中值直径及粒度分布
12.The Relationship between the Gaussian Energy Distribution of Laser Microbeam and the Damage Diameter of Cell激光微束的高斯能量分布与细胞损伤直径之间的关系
13.Calculation on Disposition of Fuel Streamline Net in Combustion Chambers for Marine D I Diesel Engine with Small and Middle Diameter of Cylinders船用中小缸径直喷式柴油机燃烧室中油线网分布的计算
14.Influence of different implant diameters on implant-bone-interface stress distributions in zygomatic implant denture种植体直径对颧骨种植义齿骨界面应力分布的影响
15.Analysis on Correlation between Day Process of Stem Diameter and Sap Flow Variations of Apocynum venetum L. and Their Environmental Factors罗布麻茎直径和茎流变化日过程及其与环境因子的关系分析
16.graduated tubing直径分段减小的油管柱
17.truncated exponential pathlength distribution截指数路径长度分布
18.cosmic-ray pathlength distribution宇宙线路径长度分布
相关短句/例句
diameter and distribution直径和分布
3)diameter distribution of stands林分直径分布
4)abrasive diameter distribution磨粒直径分布
5)Diameter distribution BP model直径分布BP模型
6)Diameter distribution structure直径分布结构
1.This paper analyzes a discrete model based on continuous transferring equation of diameter distribution structure of forest trees, discusses parametric properties and the identification method.在林木直径分布结构转移连续性方程的基础上，进行离散化分析，讨论了林木直径转移参数的性质和辨识方法，该方法对林木生长状态进行预测、预报及林业资源的最优生长控制具有重大意义。
延伸阅读
当量比表面直径、表面积体积平均直径分子式：CAS号：性质：又称当量比表面直径、表面积体积平均直径。是颗粒群表面积分布的平均直径。其意义为与颗粒群的粒形相同，总体积相同、总表面积相同，且粒度均匀的一个假想颗粒群的粒度。亦即指与该颗粒群的粒形相同，比表面积相同的一个颗粒的粒度。
