1)abundance[英][?'b?nd?ns][美][?'b?nd?ns]丰度
1.~(10)B abundance follows up of reactor main loop soluble boron;反应堆一回路可溶硼~(10)B丰度的跟踪计算
2.Effects of different energy intakes on abundance of MTP mRNA in liver of periparturient dairy cows;不同能量摄入水平对围产期奶牛肝MTP mRNA丰度的影响
3.Impact of soil fertility maintaining practices on protozoa abundance in high production agro-ecosystem in northern China;不同土壤培肥措施对华北高产农田原生动物丰度的影响
英文短句/例句
1.high abundance sensitivity mass spectrometer高丰度灵敏度质谱计
2.absolute isotopic abundance measurement绝对同位素丰度测量
3.relative isotope abundance determination相对同位素丰度测量
4.ROBUST ELEMENT ABUNDANCE ANALYSIS AND ELEMENT ABUNDANCE OF THE UPPER DEVONIAN STRATA IN NANDAN-HECHI BASIN, GUANGXI PROVINCE稳健丰度分析及丹池盆地上泥盆统元素丰度的意义
5.atmospheric abundance(s)（例如二氧化碳）在大气中的丰度／成分
6.Isotopic Abundance Determinations of Hafnium in a Hafnium Reagent and a Control Rod铪试剂及控制棒中铪同位素丰度测定
7.A Revision on Lithium Abundance Dispersin in Pleiades Stars重新审查昴星团成员星锂丰度的弥散
8.The Age-metallicity Relation of Stars in Different Stellar Populations;不同星族恒星的年龄—金属丰度关系
9.Study of Threshold Value of Organic Enrichment of Carbonate Gas Source Rocks;碳酸盐岩气源岩有机质丰度下限研究
10.Comparison of S-elements Abundance in Strong Bariun Stars and Mild Bariun Stars;强钡星和弱钡星s-元素丰度的分析
11.Grey relational evaluation on richness-degree of knowledge resources of papermaking enterprises;造纸企业知识资源丰度的灰关联评价
12.Research on Relationship between Resource Abundance and Regional Economy Development in China:Based on Resource Curse Theory;中国区域经济与资源丰度相关性研究
13.A Calculative Method of Element Abundances in the Envelope of AGB Stars;一种AGB星外包层元素丰度的计算方法
14.the whole family has a big dinner together.一家人共度丰盛的晚餐。
15.The relative abundance ofphytophages and predators were 97.6% and 2.85% respectively.植食类的相对丰盛度为96.7%,捕食类相对丰盛度为2.85%。
16.Earthquake Intensity and Influence Field around Heyuan Area and Fortification Intensity of Xinfengjiang Reservoir Dam河源新丰江地区地震烈度、地震影响场与新丰江水库大坝设防烈度
17.the secondary factors were the food abundance, vegetation type, coverage and shrub overcast, respectively;次要因子是食物丰富度、植被型、郁闭度、灌木盖度;
18.He's a man of great knowledge, but he always maintains an attitude of modesty.他知识丰富，但总是保持谦逊的态度。
相关短句/例句
abundances丰度
1.In present study,the relations between ration of the heavy to lingh s-element(slow neutrue capture element)abundances,heavy s-element abundances,lingh selement abundances and the average neutron exposure are calculated for the extrinsic AGB stars,respectively.以内禀AGB星重元素丰度的演化和外赋AGB星重元素超丰的计算为基础,计算了外赋AGB星较重s-元素丰度、较轻s-元素丰度、重s-元素和s-元素丰度的比与平均中子辐照量的关系,从理论上定量解释了外赋AGB星s-元素与金属丰度的逆相关性。
2.With the new analytical techniques of platinum-group elements(PGE)published after 1990 s and a huge amount of reliable analytical data of PGE accumulated at present,it is found that the data of PGE abundances in crust,crustal rocks and sediments published before 1980 s are not suitable as an evaluating criterion.随着20世纪90年代铂族元素分析测试技术的突破性进展以及大量可靠的岩石和沉积物铂族元素含量分析数据的积累,引用20世纪80年代前发表的有关铂族元素的地壳丰度和岩石、沉积物中的平均含量作为衡量标准已不适宜。
3.The abundances of elements in stars is an important probe to study the chemical evolution of the Galaxy.恒星元素丰度是探讨银河系化学演化的重要探针,分析不同星族成分的元素丰度是研究银河系结构和化学演化的重要课题。
3)richness[英]['r?t?n?s][美]['r?t?n?s]丰度
1.A total of 290 species(including 23 varieties and 5 forms)were identified by microscope,and species composition,richness and community structure were analyzed using statistical and clustering methods.在此基础上,作者通过统计和聚类分析方法,研究了这一区域浮游植物的物种组成、丰度变动和群落结构等特征。
2.The species richness, abundance and species diversity ind.在垂直分布上,种的丰度、多度和物种多样性指数都以海拔1100-1150m最高,随着海拔升高或降低,各多样性指标基本上表现递减的趋势。
3.In addition the seasonal variation and richness distribution of zooplankt.此外,还探讨了本海区浮游动物的丰度分布和季节差异,表明本海域为一低量值、相对稳定的海域,同时还就上述两要素(丰度和多样性)与其他相关海区进行了比较性剖析。
4)concentration[英][,k?nsn'tre??n][美]['kɑnsn?'tre??n]丰度
1.For catching the isotope of the needed concentration, it is necessary to understand the separation mechanism of the multicomponent isotopic mixture inside the cascade.为了获得所需丰度的同位素，需要将多个分离单元联结成级联。
2.The unified expression of the separation power and the overall separation factor, the cut and the concentration of the feed were derived.根据分离功率的定义,导出了分离功率与全分离系数、分流比及供料丰度3个参数的一般关系式,并分析了这3个参数的变化对分离功率的影响。
3.The concentration of isotopes and the last separation time from Americium-241 are two important attributes of Plutonium materials,and MGA and PC/Fram.同位素丰度及其分离时间是钚材料的两个重要属性,目前常用的分析软件是由美国采用固定能量法开发的PC/Fram和MGA。
5)abundance[英][?'b?nd?ns][美][?'b?nd?ns]丰富;丰度
6)abundance[英][?'b?nd?ns][美][?'b?nd?ns]丰度 A
延伸阅读
丰度分子式：CAS号：性质：即元素的丰度(abundance of element)，指化学元素在一定自然系统中的平均含量，如宇宙丰度、地球丰度、地壳丰度、某区域丰度或某类岩石的丰度等，表示一定空间或类别的地球化学系统中元素的平均含量。丰度有三种不同单位的表示方法。以重量单位表示的称为重量丰度，丰度较高的常量元素一般用重量百分数(wt％或10-2)表示，微量元素多采用百万分数(10-6,g/t)，少数超微量元素用十亿分数(10-9)表示；以原子单位表示的称为原子丰度，为某元素原子数占全部元素总原子数的份额，一般原子百分数(原子％)表示；以相对原子数单位表示的称为相对丰度，是以某一元素的原子数为基准表示的相对原子数，通常取分布较广的硅元素的原子数为106为基准。上述三种不同单位元素丰度中，重量丰度是常用表示方法，也是最基本的丰度数据，它由各类样品测试数据统计计算获得；其他二种丰度可以通过重量丰度换算得到。
