系出的
- 与 系出的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Nine super sweet corn inbred lines with abroad germplasm T1, T2, T3, M1, M2, M3, R1, R2, R3 were selected as tested lines, and original inbred lines B, C, D, 6, D2 as testing ones in this examination. 45 crosses were made by means of incomplete diallel method, and the genetic parameters of the groups and the combing ability of 10 traits, growth period, plant height, ear height, ear length, ear diameter, core diameter, baldhead length, rows per ear, kernels per row, single ear weight were tested and analyzed by means of NCⅡ design.
选用具有国外血缘的T1、T2、T3、M1、M2、M3、R1、R2和R3共9个超甜玉米自交系做被测系,以原有5个自交系B、C、D、6和D2做测验系,采用不完全双列杂交法组配出F1杂交组合45个,对生育期、株高、穗位高、穗长、穗粗、芯粗、秃尖长、穗行数、行粒数、单穗重10个性状按NCⅡ设计的原理和方法进行配合力测定与分析,并估算群体遗传参数。
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The results were used to estimate the elastic modulus of the SMA by the cantilever beam deflection formula.
如此藉由一系的实验资及分析结果,回归分析出弹性系随温而变化的函关系。
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The characteristics of the sedimentary succession and sea-level changes could be correlated with the Devonian Dianqiangui area.
但龙门山地区的泥盆系比滇黔桂地区发育齐全,厚度更大,所以后者的泥盆系只能划分出13个三级层序。
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Through investigation and analyses of sedimentary settings especially the provenience of sediments, the Sinian-Jurassic sedimentary strata exposed in the study area have been recognized as Sinian-Lower Triassic passive continental marginal sequences and the Middle Triassic-Middle Jurassic foreland basin sequences. And then, it is inferred that the collisional orogeny in the Dabieshan orogen took place in the Middle Triassic.
通过对那里沉积物形成环境,特别是物源区的分析研究,识别出震旦系至下三叠统被动陆缘沉积岩系和中三叠统至中侏罗统前陆盆地沉积岩系,据此推测大别造山带碰撞造山作用发生在中三叠世。
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The distribution of gear's contact stress, root stress, and contact engagement line in the engagement situation of gear pairs, were obtained on the base of explicit integration method. 3. Adopting the method of system matrix, the torsional vibration differential equation of general shafting was gained. The simple harmonic forms of excitation torque under the normal combustion or piston flameout of in-line engine and v-type engine were analysed. The decoupled algorithm of free vibration and forced vibration and the solution to the vibration damper's energy of resistance and the off-resonance calculation were studied. The sensitivity formulations of the natural frequency and vibration mode to physical parameters of system were derived by solving the eigenvalue problem. These sensitivity formulations provided the theoretical base for the dynamic modification of structure.
运用系统矩阵法建立了轴系的扭振微分方程,并对直列和V型发动机在正常发火和气缸熄火工况下的激振力矩进行了详细的简谐分析;基于精确方法推导了自由振动和强迫振动的解耦算法,给出了能量法计算中的减振器阻尼功求解和非共振计算方法;并研究了曲轴系扭振非线性分析中的变惯量问题,得到了单缸转动惯量的精确求解公式以及变惯量和固有频率的关系式;最后,从特征方程和振型正交性出发,推导了固有频率和振型对轴系转动惯量和刚度等物理参数的灵敏度,为扭振系统的结构动力学修改提供了理论基础。
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But after early lineages branched off, flowers bulked up their endosperm with two sets of genes from the mother and one from the father.
但在原始种系分出旁系后,花的胚乳增生,两组基因来自雌株,一组来自雄株。
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Inside the copular verb category takes on complex and mixed family resemblance .
连系动词是典型范畴,be是典型成员,其他成员以典型be的两个&突显性&为认知参照点而构建,连系动词范畴内部呈现出错综复杂的家族相似性。
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The barley chromosome in wheat was identified by genomic in situ hybridization in which biotin labelled total genomic DNA of barley betzes was used as probe and the unlabelled total DNA of common wheat Chinese Spring as blocking DNA. A series of wheat materials were tested as follows; two disomic alien substitution and monosomic alien addition lines, 2n=43; two monosomic alien substitution lines.
用生物素(Biotin-16-dUTP)标记的大麦Betzes基因组DNA作探针,以普通小麦中国春总DNA作封阻进行基因组原位杂交(Genome in situ hybridiz ation,简称GISH),从13株小麦-大麦杂交后代中鉴定出2个含有3条大麦B etzes2H染色体的材料(2n=43);2个2H单体异代换系(2n=42);7个2H二体异代换系(2n=42)。
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The selflock conditions and the selecting range of transmission ratio of power in closed epicyclic gear trains can be used in common differential gear trains, too.
本文基于啮合功率法推导出封闭周转轮系效率计算的统一公式,大大简化了封闭周转轮系效率计算难度。
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combining the mass unbalanced response calculation method with the dyna mic balance method of the flexible rotors on the spot and based on the 1st and 2nd order mass unbalanced models, an influence coefficients method for mass unba lanced response calculation is presented.
摘 要 将目前发电机组轴系质量不平衡响应计算方法和柔性转子现场动平衡方法相结合,在给出转子一阶、二阶质量不平衡模型基础上,提出了计算轴系不平衡响应的影响系数法。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。