1) Soil impedance
土壤阻抗特性
2) soil properties
土壤特性
1.
Variability of reclaimed soil properties in subsided land;
塌陷地复垦土壤特性变异研究
2.
Impact of invasive species on soil properties:Canadian goldenrod (Solidago canadensis) as a case study;
入侵种加拿大一枝黄花对土壤特性的影响
3.
Effects of soil properties on water absorption of super absorbent polymers;
土壤特性对保水剂吸水性能的影响
3) soil characteristics
土壤特性
1.
Relationship between soil characteristics and preferential flow paths in forest land of granite area, the Three Gorges;
三峡库区花岗岩林地土壤特性与“优先路径”的关系
2.
We analyzed the impacts of agricultural activities, forest vegetation and human disturbances on wetland soil by studying on the soil characteristics of Jianhu nature reserve wetland.
采用野外采样及室内分析方法,研究了剑湖自然保护区湿地土壤特性,探讨了农业利用和人为活动干扰对剑湖湿地土壤的影响以及森林对湿地的涵养作用。
3.
The authores analysed and researched the distribution situation and soil characteristics of main middle-and-low-yielding fields according to the mountain area cultivated land resource state.
针对商洛山区耕地资源状况,分析研究了该区主要中低产田分布情况及土壤特性。
4) soil characteristic
土壤特性
1.
The biomass,soil characteristics and root distribution of 17-year-old pure Platycladus orientalis stand and Hippophae rhamnoides × Platycladus orientalis mixed stand were studied in Yongshou County,Shaanxi Province on the Loess Plateau.
选择黄土高原17 a生的侧柏纯林作为对照,对沙棘—侧柏混交林中的侧柏生长、林地土壤特性及根系分布特征进行了系统研究。
2.
This paper studied and analysed the succession process of soil characteristic along the latitude in the Manas river.
以玛纳斯河流域为案例,重点分析沿流域纬度梯度土壤特性的变化。
3.
In regression analysis processing utilizing artificial neutral network technology, the relationship of soil characteristic and crop yield were confirmed by swatch learning, adapt network power, nonlinear mapped in variable and self\|variable .
把人工神经网络技术引入回归分析过程,通过对给定样本的学习,不断调整网络权值,实现在变量与自变量之间的非线性映射,从而达到确定土壤特性与作物产量之间因果关系的目的。
5) soil character
土壤特性
1.
The analysis on the soil characters of 4 tea production regions in Xinyang shows the physicochemical characters and element contents of the soil influence the tea quality remarkably.
对信阳4个茶区的土壤特性进行了分析。
6) soil property
土壤特性
1.
Spatial variability and fractal dimension of soil property in field;
农田土壤特性的空间变异性及分形特征
2.
This experiment researched species diversity and soil property change of Rhus typhina community by applying the method of spatial sequence instead of time successional sequence in degraded hilly Taihang mountain.
采取空间代替时间的方法,研究了太行山退化山地不同林龄的火炬树群落物种多样性及土壤特性的变化,结果表明,(1)火炬树群落呈单优势群落,物种多样性指数和丰富度指数数值由草本层-灌木层-乔木层依次递减;随火炬树群落林龄增加,多样性指数下降,各样地多样性指数差异不大。
3.
The paper studies on oasis stability in oasis-desert ecotones through the spatial variability of soil property.
为从绿洲-荒漠过渡土壤空间变异的角度来探讨人类活动下绿洲生态空间稳定性问题,选择甘肃省张掖市龙渠乡的典型绿洲-荒漠过渡带作为试验区,运用地统计学方法对7种土壤特性值(土壤水分含量、水溶性盐分含量、pH值、机械组成、容重、速效磷含量、水解氮含量)在不同景观的空间变异程度进行分析。
补充资料：声特性阻抗
声特性阻抗
物理学术语。关于介质声学特性的物理量。在超声诊断领域简称声阻抗。声波在介质中某点的有效声压与通过该点的有效质点速度的比值。又可用介质的密度与声速的乘积来表示。声波经均质性介质时基本按直线持续传播；声波经两种介质时，其声阻抗差超过0.1%即产生声学界面，引起反射。脉冲反射式超声诊断仪显示的人体组织断面声像，实质上是人体组织中声阻抗差别的空间分布图。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条