查询词典 univalent

The univalent radical derived from benzoic acid.

从苯甲酸衍生而来的一价化学基。

The frequency of cells with univalent at MI and with lagging chromosomes and chromosomal bridge at A I in PMC of F1 hybrids of 4 alloplasmic 1BL:/1RS and non-1BL/1RS wheat male sterile lines with Aegilops kotschyi,Ae. variabilis,Ae.ventricosa and Ae.bicornis cytoplasms were systematically investigated,and the relationship between FCU at M I,FCLB at A I and F1 selfed seed set was analyzed.

系统调查了4类异质(粘果、易变、偏凸、二角山羊草细胞质)1BL/lRS、非1BL/1RS小麦雄性不育系与其恢复系杂种F减数分裂中期Ⅰ出现单价体细胞频率，以及后期Ⅰ出现落后染色体和染色体桥细胞频率，并对中、后期染色体变异率与杂种F自交结实率进行了相关分析。

In Chapter 3, six mixed-valence or heteronuclear metal imidazolates have been synthesized and structurally characterized through introducing univalent metal ion into bivalent metal imidazolates, which give a rich topological chemistry including novel topological networks.

其中尤为突出的是混价铜咪唑配合物的控制合成，通过精确调节反应条件得到了混价比例不同的产物，其中一种呈现出新型的四连接网络的拓扑类型。

The univalent group N3- derived from hydrazoic acid.

从叠氮酸衍生而来的一价基 n。

For salt lake brines, ED exhibits very low efficiencies for removal of trace divalent ions or extraction of trace univalent ions.

对盐湖卤水的分离而言，ED对卤水中痕量的二价离子的脱除效率很低，对卤水中痕量的一价离子的提取效率也很低。

Under normal temperature (25-30℃), the process of pollen mother cell meiosis is normal; The most of chromosomes become bivalents which like "V","O","Y","X", sticks and dots, and mainly like dots,"V" and "O"; and a few of univalent (0.79% of Tainong 1 and 0 of Irwin) and multivalent (4.76% of Tainong 1 and 3.57% of Irwin) had been observed.

常温（25~30℃）条件下，花粉母细胞减数分裂过程较为正常，双线期染色体主要形成二价体，二价体构型以&V&型、&O&型、&Y&型、&X&型、点状和棒状等形式存在，并以点状、&V&型和&O&型较多见，出现少量的单价体和多价体，其中台农1号为0.79%和4.76%，Irwin为0和3.57%；同时仅在少量中期Ⅱ和后期Ⅱ花粉母细胞中观察到落后染色体。

Interlayer oxidized zone can be divided accurately by Fe_2O_3, Fe_2O_3/FeO and U parameters. We can correct the field macroscopic color zoning by combining the macroscopic zoning and microscopic zoning. Univalent major elements components(Al_2O_3, SiO_2, K_2O, Na_2O) show remarkable activity at the process of interlayer oxidizing, their contents are variable and mingled in different zones and it can't be used in zoning. But we can speculate the developmental degree of interlayer oxidized zone and uranium mineralization according to the concentration trends and variation characteristics of sensitivity group, activity group and their ratios .(3)The comparatively steady elements such as lithiphile elements, sulfophile elements and high field strength elements change regularly at the process of interlayer oxidation except some radioactive elements. Trace elements and rare earth elements commonly enrich in thin rock clast such as mudstone, in which the enriched elements species are more than those in the whole rock, which indicate that the regeneration action in caulking matter are more deep than that in whole rock at the process of interlayer oxidation, and the reallocate intention of trace elements in main minerlized rock in Tuha basin are more intensive than that in Yili basin at the process of deposition ,diagenesis and later changes .

根据化学蚀变参数PC值和分离迁移位等将常量元素组分分为敏感组分组、活动组分组、次活动组分组和惰性组分组，不同组分可分别用于讨论层间氧化带低温地球化学中不同问题；敏感组分(变价元素组分Fe_2O_3、FeO)和U在层间氧化带中迁移富集规律明显，Fe_2O_3／FeOFe~(3+／Fe~(2+)比值具分带判别能力，配合U含量对层间氧化带进行较准确的分带，可克服野外宏观颜色分带偏差：提出Fe~(3+)／Fe~(2+)分带判别值在不同盆地、不同地段不同，除受氧化作用控制外，流体酸碱度不同也是重要因素的观点，对找矿实践有实际指导意义；活动组分(Al_2O_3、SiO_2、K_2O、Na_2O)在层间氧化作用过程中具有较明显的活动性，其含量值变化跳跃，在不同分带相互交织，不具分带指示意义；但利用敏感组分、活动组分及其比值在层间氧化带中的变化特征可推测层间氧化带发育的完善程度及其含矿性；次活动组分组(CaO、MgO、MnO_2)含量低，变化规律性差；惰性组分组(TiO_2、P_2O_5)含量低，活动稳定，可用来反映沉积物源特征。

It is presumed whether the electron temperature can rise up quickly in the early discharge and fall down rapidly during the discharge afterglow is the key to realize the alternate oscillation of self-terminating and recombination lasers in univalent ions of strontium in experiment.

分析了两种激光交替振荡的发射过程、脉冲宽度特性和粒子数反转机理，认为在放电早期和余辉期电子温度的急剧升高和降低是Sr离子自终止和复合激光实现交替振荡的关键所在。

The effect of three common hydro-chemical factors,such as univalent cation concentration(Na+ ion concentration),bivalent cation concentration(Ca2+ ion concentration) and pH value on clay particles releasing in sand column was studied through batch test.

通过批量试验，对一价阳离子浓度，二价阳离子等，浓度(Ca2+浓度)和pH值三个最常见水化学因素对砂柱中粘土颗粒释放的影响进行了研究。

Bisulfate:The univalent inorganic acid group HSO or a salt of sulfuric acid containing it.

硫酸氢盐：单价无机酸 HSO或含有它的硫酸盐。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。