相对多度,relative abundance
1)relative abundance相对多度
1.The weeds whose relative abundance(RA) > 10% were Chenopodium album L.相对多度达10%以上的杂草依次为藜、鸭跖草、稗草、苘麻、反枝苋、红蓼、马唐、铁苋菜、马齿苋和山苦菜。
2.The importance value and relative abundance of turf weeds in north Hunan were investigated, and an initial understanding of the species, distribution, and harm levels was gained.从重要值和相对多度两方面对湘北地区城区草坪杂草进行了调查研究,初步了解湘北地区城区草坪杂草的种类、分布与危害程度。
3.The colonization percentage, AM fungal (AMF) spore density, and relative abundance and occurrence frequency were determined.对所分离到的孢子进行鉴定,发现无梗囊霉属和球囊霉属的孢子占大多数,其频度和相对多度分别为33。
英文短句/例句

1.Barn yard grass( Echinochloa crus-galli) and day flower( Commelinacommunis) were the most abundant weeds.其中前7种相对多度达20以上,可视为当地大豆田的优势杂草。
2.Clustering algorithm for multi-density based on grid relative density基于网格相对密度的多密度聚类算法
3.Multi-Scale Direct Learning Control for a Class of Systems with Arbitrary Relative Degree;具有任意相对度的系统多尺度直接学习控制
4.A considerable number of people object to the government’s attitude to immigration.相当多的人反对政府对待移民问题的态度。
5.Experimental Investigation of Multi-scale Coherent Structures Effect on Scale-similar Sub-grid Model of Large Eddy Simulation;多尺度相干结构对尺度相似亚格子模型影响的实验研究
6.Evaluation of release similarity of multicomponents in Zuojin Sustained-Release Tablet by the total quantum statistical moment similarity总量统计矩相似度法对左金缓释片多成分释放相似度的评价研究
7.Investigation of the Effect of the Size of Reactants on the Heterogeneous Reactions;反应物粒度对多相化学反应影响的研究
8.Spinosad Resistance and Associated Fitness Changes in the Diamondback Moth, Plutella Xylostella (L.);小菜蛾对多杀菌素的抗性及相关适合度变化
9.Relative Membership Degree Method for Incidence Analysis Based on Multi-Attribute Interval Number;基于多指标区间数关联分析的相对隶属度方法
10.Approach to multi-objective decision-making with fuzzy Information based on relative membership degree;基于相对隶属度的模糊信息的多目标决策法
11.Real-Time Image Display Method on Multifeed Relative-deep Information of Underwater Target水下目标多点相对深度信息实时显示方法
12.Effect of sintering temperature on properties of porous TiB_2-TiC multiphase ceramics烧结温度对制备多孔TiB_2-TiC复相陶瓷性能的影响
13.The high-precision measurement technology based on multichannel phase-difference comparison for TOA of signals多路相差比对信号到达时间高精度测量技术
14.Relative proportional fair scheduling scheme based on multi-user diversity基于多用户分集效应的相对比例公平调度算法
15.Multi-focus Image Fusion Algorithm based on Relative Activity Level基于相对清晰度的多焦距图像融合算法
16.It is not possible to design for capsule pipeline flow with an accuracy comparable to that for singlephase or even many multiphase systems.不可能对包囊的管道流动做出与单相乃至许多相体系在精确度上。
17.Effect of Liquid Dispersion on Corrosion Behavior of Metals in Gas/Liquid/Solid Multiphase Corrosion Systems液相分散程度对气/液/固多相体系腐蚀行为的影响
18.Experimental study of the relationship between relative permeability and saturation in water-oil two-phase system in porous media多孔介质水油两相系统相对渗透率与饱和度关系试验研究
相关短句/例句

RA[英][rɑ:][美][rɑ]相对多度
1.The RA of weeds such.其中菊科和十字花科各6种,豆科、紫草科和禾本科各2种,旋花科、茜草科、桑科、石竹科、玄参科、藜科、车前科、唇形花科、锦葵科、伞形花科、蓼科各1种,其中灰藜、三叶草、黄花蒿、米瓦罐和狗尾草5种杂草的相对多度分别是40。
2.The RA of weeds such as Lathynls tuberosus , Avena fatua and Sonchus der-aceus are 54.其中块茎香豌豆、野燕麦和苦苣菜几种杂草的相对多度分别为54。
3)stratum relative abundance method分层相对多度法
1.The dynamic varieties of the stratum relative abundance in different layers and volume, biomss in different forests of 4 dominant species in Heishiding Natural Reserve, Guangdong province , were studied by stratum relative abundance method and form quotient method.采用分层相对多度法和形率法 ,研究了几种主要树种在群落演替的不同序列各层中的相对多度及其在不同演替序列中材积和生物量的变化 ,从针叶林到混交林 ,马尾松 (Pinus massoniana)由第 III层已退到第 IV层 ,生物量由 1 2 5 。
4)Relative abundance rank相对多度排列
5)species relative abundance物种相对多度
6)multi-rankings relative membership degree多等级相对隶属度
延伸阅读

磁带相对灵敏度分子式:CAS号:性质:磁带相对灵敏度是磁带一项重要的电磁质量指标,是指以相同的录音电流和各自的常规测试偏磁,在被测磁带和基准带上录以相同频率的信号时所产生的差值,通常用分贝(dB)表示。它表征被测磁带与基准带的灵敏度接近程度或互换程度。