查询词典 multiple-story
- 与 multiple-story 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The objective of this paper was to study from three aspects, respectively: Breeding of transgenic rice restorer line for multiple resistance against bacterial blight, striped stem borer and herbicide; Marker-assisted breeding of pyramiding rice fragrance gene and multiple bacterial blight resistance genes; Molecular mapping of transgene cry1Ab in transgenic rice.
本论文主要开展了三个方面的研究:多抗性(抗白叶枯、螟虫、除草剂)转基因水稻恢复系的培育;水稻香味基因与抗白叶枯基因的聚合育种;转基因水稻中转cry1Ab基因的分子标记定位。
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Therefore, the topic teaching only has replaced the curriculum teaching, can realizes multiple teaching model, can trains the design talent who has multiple creativity.
因此,只有以课题教学来代替课程教学,实现综合化教学模式,才能培养出具有综合创造力的设计人才。
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Presence of multiples leads to poor quality in main stages of offshore seismic data processing, such as velocity analysis, stacking and imaging. Three basic multiple attenuating methods are reviewed; and a more effective multiple attenuator is achieved by joining them. As the first step, shot or receiver records are extrapolated by wave-equation datum algorithms. The extrapolation will establish a model of waterbottom multiples. Waterbotton multiples will then be removed by subtracting the extrapolated records from the original records. After that, predictive deconvolution is used to attenuate the multiples created by source ghost. Finaly, RADON transformation is adopted to separate peg-leg multiples and residual water-bottom multiples from the original data in the τ-p domain.
地震勘探尤其是海上地震勘探中存在着各类多次波,由于多次波的存在严重影响了速度分析、叠加、偏移成像等地震资料处理,海上多次波主要有全程多次波和层间多次两大类,为了压制海上不同类型的多次波,本文首先分析波场外推、预测反褶积和拉东变换衰减不同多次波的理论基础,然后联合采用这些方法,分别衰减全程多次波和层间多次波;即:首先对炮记录或者接收点记录进行波场外推,建立海底多次波模型,预测并减去全程多次波,然后利用预测反褶积衰减掉周期性明显的多次波,最后将数据转换到τ-p 域,用拉冬变换根据同一时间多次波和有效波在速度等方面的差异,进一步分离层间多次波和剩余的全程多次波,并在该域中切除分离出的多次波,从而实现联合多次波衰减处理。
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The entropy is a very important core concept in the information system, By calculating and comparing the entropy in the multiple-choice question, this paper analyzed the significance of the multiple-choice question s entropy in Drill and Practice courseware.
信息熵是信息系统中一个十分重要的核心概念,本文通过对课件中多重选择问题的信息熵的计算比较,浅析了多重选择问题的信息熵在操练与练习型结构课件中所体现的意义。
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It is possible to realize the multiple arrival tracking with the multistage technique because the multiple arrivals are different combinations or conjugations of the simple incident, transmitted and reflected waves at the velocity boundaries.
基于多次波是通过速度界面简单的入射、透射、反射及转换波按一定规律及原理的不同组合,因此可实施分区多步计算技术。
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Consider a machine control system that needs to control a linear stage, rotate multiple shafts, control lighting and read in video data; in a system like this, there are multiple processes that must happen deterministically, in real-time, and in parallel.
考虑到一个机器控制系统需要控制一个线性电路级,旋转多个轴,控制照明和视频数据的读取,因此,在这样一个系统中,同时有多个进程必须独立、实时、并行发生。
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Magnetic resonance imaging of the brain revealed multiple intense lesions in the left occipital lobe, basal ganglia and periventricular regions suggesting multiple sclerosis.
脑部磁共振MRI结果显示大脑左侧枕叶有较高密度影损害,神经中枢基部和脑室周围的区域提示多发性硬化。
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It is shown that PTDT is a robust and valid approach for mapping QTL of threshold traits. Moreover, PTDT is powerful for marker with multiple alleles and multiple tightly linked markers, too. From the results of simulation on quantitative traits, following conclusions can be derived.
结果表明:(1)PTDT是一个稳健的QTL定位分析方法,在各种参数组合下,其假阳性概率(1型错误)都在设定的显著性水平附近;(2)PTDT不仅可以检测到效应较大的QTL,而且对效应较小的QTL检验功效依然很高;(3)对各种状态1发生率的阈性状PTDT检验功效也很高;(4)对利用多等位基因标记、多个紧密连锁的标记的QTL定位,PTDT依然是一个高效方法。
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As PTDT does in threshold traits, PTDT is valid not only for different QTL effect level, but also for maker with multiple alleles and multiple tightly linked markers.(2) Under an appropriate selection ratio s (in this study, s is 0.2, 0.4, 0.6, 0.8, respectively), the power of PTDT can be improved and the genotying individuals can be decreased using selective genotyping design. However, the power of PTDT is related with population size and population structure, an appropriate selection ratio can be defined by simulation based on the existing data.(3) Among the three transforming methods, mixed-family selection is the best, full-sib selection has same power to mixed-family selection in many parameter combinations, and Estimated Breeding Value selection is inferior to them.
数量性状QTL定位的模拟研究结果表明:(1)数量性状经有效转化后,PTDT对数量性状QTL定位保持了阈性状QTL定位的稳健与高效,对不同效应大小的QTL(10%,30%,50%)PTDT都是一个有效的分析方法;(2)在多等位基因标记、多标记方面,PTDT的检验功效与阐性状分析时一样高效;(3)在合适的选择率下(本研究的分别为0.2,0.4,0.6,0.8,1.0),选择性基因型测定不仅可以减少基因型测定的数量,而且可以提高PTDT的检验功效,但选择性基因型测定的PTDT检验功效很大程度上与群体大小和结构有关,这个可根据具体情况通过模拟找到一个合适的选择率;(4)三种转化方法的转化效力结果表明,家系内混合家系选择的转化效力最高,家系内全同胞选择次之,估计育种值选择的转化效力较差。
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The result showed that HMW-GS was controlled by multiple alleles, and HMW-GS in F1 generation had codominance, Then the multiple alleles of Glu-1 site were codominant with two parents dominant together in F1 generation grain, them was a difference between original crass and reciprocal cross.
结果表明,HMW-GS由复等位基因控制,F1代HMW-GS具有共显性。
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- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。