英语人>网络例句>两倍 相关的搜索结果
网络例句

两倍

与 两倍 相关的网络例句 [注:此内容来源于网络,仅供参考]

The cell aggregation and cellular nodule were predominant in this group and the collegen increased in these silicotic nodules.

统计 两组中出现5倍量差异的点共有98个,其中,相比正常组,有13个点在IPF组及矽肺组中出现5倍量的增加;而有22个斑点却出现5倍量的减少。

A high performance liquid chromatographic method was established for determination of caffeic acid contents in tetraploidy taraxacum officinale and diplontic taraxacum dissectum.

本文采用四倍体药蒲公英和二倍体多裂蒲公英为材料,通过HPLC法测定并比较两种蒲公英中咖啡酸的含量,以大力推广产量高,抗逆性强,药用活性成分高的优质多倍体蒲公英新品种。

A two-component carbon tetrachloride system and a two-component aqueous system have been treated with the proposed strategy where only 21 calibration samples are needed, and the result showed that the predictive ability was not obviously impaired for the former system while being clearly strengthened for the latter one in comparison with a conventional way that required a calibration set of 100 samples.5 An unlooked-for experimental observation that in near-infrared spectroscopy the second overtone of aniline adsorbed by 13X molecular sieve nearly disappeared led us investigate a fundamental problem: the behavior of NIR when the outside space surrounding a molecule is too small to allow the molecule to vibrate freely.

同时,最小相关样本设计能进一步减少所需的校正样本数,且能提供更多合适变量以建立多元校正模型。这两方面的改进使模型的预测能力得以提高,其预测精度即使在水体系中也有明显的改善。五、近红外漫反射光谱在线非接触监测气-固吸附过程中出现了一个意外现象,即在近红外光谱上,被13X分子筛吸附的苯胺的二级倍频几乎完全消失了。这促使笔者深入探讨了近红外光谱的空间效应(当一分子被一足够小的刚性空间限制时,其振动的受限导致一级倍频和二级倍频强度均减少,并且后者减少的程度比前者更大)。

It implies that the relationship between Japanese black cattle and Mongolian cattle is more distant. According to that the rate of sequence divergence of mtDNA is estimated to be 2% per million years, Haplotype II and III of mongolian cattle s mtDNA might be separate about 240 thousand years ago, which is earlier than the 10000-year history of cattle husbandry. Haplotype of yellow cattleand zebu cattle might be separate about 0.73-0.92 million years ago.

按照哺乳动物mtDNA碱基突变率每百万年2%计算,单倍型Ⅱ和Ⅲ(遗传距离为0.478%)所代表的蒙蒙古牛和日本和牛遗传多态性比较研究硕士学位论文古牛群体之间的分化时间大约24万年,这比人类驯化牛10000的历史要久远得多。I单倍型和11、m两种单倍型(遗传距离为1.467%,1.83870)所代表的牛群体之间的分化时间大约73万年至92万年前。

Using count the leave.and flow cytometric to identifiy ploidy levels for the regenerated plants derived from antherculture in burley tobacco in this article,it shows that using count the chloroplast method could identify the ploidy levels simply and economic but it cannot identify the mixoploid accurately, so it easily lead to misidentify.

本文分别用气孔保卫细胞叶绿体计数和流式细胞仪两种方法来鉴定花药培养再生植株染色体的倍性,结果发现叶绿体计数法可以简单经济的检测烟草花药培养再生植株的染色体倍性,但它不能准确地鉴定出混倍体植株,易造成误判。

In the offsprings of the aneuploids (P3) with 41~44 chromosomes, there are four types of plants with 29~32 chromosomes. Except the plant with 29 chromosomes, others which appeared abnormal meiosis behavior and poor pollen fertility are mixoploid.

在染色体数为44与41的两种超倍体(P3群体)后代,鉴定出具有29~32条染色体的4种非整倍体,除染色体数为29的植株外,其余均为混倍体,它们的减数分裂异常,花粉育性低。

The article discusses China's economy, port logistics and the developing strategy of ports;explores the transnormal collaboration between Shanghai and Yangshan, and the rise of Jiangshu and Zhejiang Provinces's harbors;as well as analyses how to encourage healthy competition, how to establish reasonable logistic system and effective cooperation mechanisim.

本文对中国经济和港口物流,港口的发展战略,上海和洋山的超常规合作,江浙两省的港口崛起,鼓励健康竞争,建立合理物流体系以及有效合作机制做了探讨和分析。这里专家的回答会让您满意早知道白云兄出手,我就不翻译了,不过,这里说明一下:增长了近3倍,应该是翻了近四倍,而不是三倍。

In the second part of of this thesis, we firstly derivate the operation condition of intracavity SHG of dualwavelength laser from the rate equation, and then numerically calculate the relationship between the laser operation parpmeters and the pumping powers. And then we discuss two possible ways to get balancing outputs of the harmonic waves of the two wavelengths. By comparing the two ways, we find that the method by increasing the geometrical factor of 1079. 5nm SHG has the higher efficiency than the method by adding the additional loss of 1079. 5nm basic wave. Besides, the first method is easier to realize in experiment than the second method.

本论文第二部分从速率方程出发,通过求解速率方程的稳态解得到了Nd:YAP腔内倍频双波长激光的连续运转条件,数值计算得到了随泵浦功率变化的激光运转情况;计算、分析了通过增加主波长的倍频耦合几何因子和增加主波长的腔内损耗两种方法获得均衡的双波长倍频输出的运转情况,通过二者的比较,发现增加倍频耦合几何因子的方法比增加损耗的方法效率更高,而且在实验上更易于实现。

Specific bands of D genomes and AB genome in four diploids, four tetraploids and four hexaploids, respectively, could be also amplified by means of M70/E5 1 and M711E5 1 primer combinations screened from twenty pairs of AFLP primer combination for test.

对二倍体、四倍体和六倍体小麦各4个材料的DNA进行AFLP扩增,从20对引物组合中筛选出M70/E51和M71/E51两个引物组合能扩增出D染色体组或AB染色体组的特异性带。

Compare with tunable filter detection technique, the wavelength measurement technique using tunable source is analyzed theoretically. We design a kind of all-fiber sensing interrogation system, by using long-period fiber grating as edge filter to interrogate the sensing signal of the FBG sensor. The wavelength resolution of the sensing measurement is 0.05nm.A novel FBG Bourdon tube sensor has been constructed, utilizing the pressure mechanic amplify function of Bourdon tube. The measured pressure sensitivity is two orders of magnitude higher than a simple monomode fiber with an in-fiber grating. Especially the pressure sensitivity of the sensor can be determined by changing the parameters of the cantilever beam. Adopting polymer package technique, we coat fiber Bragg grating by using polymer with different mechanic properties.

利用波登管对于压力的机械放大作用,研制了一种新颖的光纤光栅波登管压力传感器,将FBG的压力灵敏度提高了两个数量级,特别是这一传感器的压力灵敏度的大小可以通过改变悬臂梁自身的参数灵活控制;采用聚合物封装技术,将FBG封装于具有不同力学特性的有机聚合物基底中,利用基底的带动作用,将FBG对压力的灵敏度分别提高了20倍和31.7倍,由于我们采用了特殊的工艺,封装后的FBG不出现任何光栅啁啾;在成功封装的基础上对封装光栅的蠕变效应、FBG与封装材料之间的防滑处理等进行了实验研究;设计了外加圆柱形铝管的聚合物封装光纤光栅,将FBG的压力灵敏度提高了1430倍,可用于对微小压力变化的精确测量。

第96/100页 首页 < ... 92 93 94 95 96 97 98 99 100 > 尾页
推荐网络例句

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。

The almost sure central limit theorem is a pop topic of the probability research in recent years,because it has many actual applications in the random analogue.

中文摘要:几乎处处中心极限定理是近几十年概率论研究的一个热门话题。它之所以引起人们的注意是由于它在随机模拟方面的实际应用参见Fisher