查询词典 CV

It is vital to reduce the variation of Dracaena fragrans cv.massangeana and Dracaena fragrans cv.lindenii by preventing the differentiation from forming callus as well as the reduction or the prevention of callus redifferentiation.

避免脱分化形成愈伤组织以及减少或阻止愈伤组织再分化是减少金心也门铁和金边也门铁这类嵌合体品种发生变异的关键之一。

The basal diameter, height of aerial stem, leaf length at middle stem, leaf width at middle stem, internode length at middle stem, internodes number and panicle length of 30 plants from every population were recorded. The statistics of morphological characters showed that the distribution trends of the averages of morphological characters are similar among populations. However, the coefficients of variation within population of 7 morphological characters were very different. The CV of internodes was largest and the CV of height was smallest within population. F-statistics showed that the differences of all morphological characters among populations were significant (P.01). But the differences among populations were different between different groups. The cluster analysis proved that all populations could be divided into three types: salty reed, freshwater reed and giant reed.

对来自每个种群的30个个体的基径、株高、中部叶长、中部叶宽、中部节间长、节间数、穗长7个形态特征的统计分析表明：各形态特征平均值在种群间的分布趋势相似，但变化幅度不同，株高、叶长等营养特征变化较大大，生殖特征穗长的变化较小；7个形态指标在种群内的平均变异度从大到小依次为中部节间长、中部叶宽、穗长、中部叶长、基径、节间数、株高，种群内的平均形态变异度与生境异质性有关；7个形态指标在种群间均差异显著，但多重比较分析显示显著差异主要存在于BZH、淡水生境种群和盐渍化生境种群之间，在相似生境种群间的形态差异不显著；以形态特征为依据的聚类分析支持将15个种群分为三类：盐生芦苇、淡水芦苇和巨型芦苇。

The electrochemical property of PDT and PDT metal complexes were characterized by CV, from the result of CV, it can be found that PDT and PDT metal complexes possesses electrochemical activity, which arised from the heteroatom of molecules.

我们用循环伏安表征了对二苯甲醛缩氨基硫脲及其金属络合物的电化学性质，从循环伏安的结果来看，对二苯甲醛缩氨基硫脲及其金属络合物具有一定的电化学活性，并且这些电化学活性主要来自于分子中的杂原子。

On the vertical section,the changes of variance and CV in different soil layers were different along with the scale,Moreover,the changing pattern of isogram of soil water was different under the same scale and was alsodifferent from the changing pattern of variance and CV from the traditional statistics.

在垂直剖面上，不同水平层次土壤含水量的方差和变异系数的变化规律随尺度而不同。

Major production and sales of various CV Joint universal joints, CV Axle.

主要生产和销售各种球笼万向节、驱动轴总成。

Methods Adopting electrophysiological methods,the extracellular discharge signals of neuronic action in NTS were recorded with glass microelectrodes. The effects of acupuncture at "Zusanli"(ST 36),"Neiguan"(PC 6),"Zhongwan"(CV 12),"Qihai"(CV 6) on discharges of NTS neurons and intra-gastric pressure were observed in the rat at normal physiological state,and increase or reduction of gastric motility.

采用神经电生理学方法，用微电极细胞外记录大鼠孤束核单个神经元的活动，观察在正常生理状态及胃运动增强和胃运动抑制的病理状态下，分别针刺&足三里&&内关&&中脘&&气海&对孤束核神经元放电及胃内压的影响。

Acupoint groups used were 1 Qihai (CV 6), Guanyuan (CV 4), Fenglong (ST 40) and Sanyinjiao (SP 9); 2 Pishu (BL 20), Shenshu (BL 23), Huantiao ...

结果 ：电针组和对照组的NCV均有部分明显加快(P 0 5)，PSP显示了双相调整、趋于平衡的变化，电针组SEP的N1 波明显缩短(P 0 5)，在以上 3项指标的改善方面，电针组都明显优于对照组(P 0 5，P 0 1 )。

Ssp. pekinensis Olsson. cv. Huangya-14, Raphanus sativus L.cv. Yuanbai and Orychophrogmus vi-olaceus L.

品种圆白和诸葛菜Orychophrogmus violaceus）3个材料中扩增到3个完整的cDNA全长，分别命名为BcCYP86MF，RsCYP86MF和OvCYP86MF，它们的cDNA全长分别为1 854，1 818和1 876 bp，分别编码524，526和534个氨基酸残基。

In this research it was established that a method of isolation of total RNA from Ziziphus jujuba Mill. cv. wuhexiaozao and Ziziphus jujuba Mill. cv. jinsixiaozao fruit which were from different grown time. Also the Reverse Transcription System for Chinese jujube fruit was established in the research. The purpose of this research was to lay a solid foundation for cDNA-AFLP analysis, to illustrate the mechanism of stoneless of Chinese jujube, to clone the gene to stoneless, to cultivate new Chinese jujube cultivars by gene modified breeding.

以无核小枣和金丝小枣不同发育时期的果实为试材，建立适宜枣果实总RNA提取的方法及其反转录的技术体系，为进一步进行枣果实cDNA-AFLP分析及有关的分子生物学操作，阐明枣无核突变体的分子机理，并克隆枣果实无核突变体相关基因，通过基因工程培育优良的无核枣品种奠定基础。

This article selects Cang county、Xian county and Botou city as the study area which have a large growning area. Using ecological-geology and geochemistry background materials based on previous reasearch results, takes out a geochemistry evaluation of the soil quality, The safety of Zizyphus jujube cv. Jinsi-xiaozao is tested, and especi.ally studied the character of nutrient element's migration and distribution in soil. This study aims to provides scientific basis for the construction of high-quality Zizyphus jujube cv.

本文选取金丝小枣种植面积较大的沧县、献县和泊头作为研究区，在研究区已有研究成果的基础上，利用生态地质背景资料和地球化学背景资料，对金丝小枣区土壤质量进行了地球化学评价，对金丝小枣区的金丝小枣进行了安全性评估，并对营养元素在土壤中的迁移分布特征进行了重点研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。