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长和
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  “长和”译为未确定词的双语例句
     The Limits of Chinese Coding-lengths and input speed
     N元汉字字词编码输入的最短码长和速度上限
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     The Length of Conjugacy Classes and the Structure of Finite Groups
     共轭类的长和有限群的结构
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     Two ways of steal pipe automatic length measurement were presented,and the influencing factors was analyzed.
     分析了钢管自动化车间精整区自动测长设备的两种基本原理:推钢测长和在线测长,并推导了钢管长度的运算公式。
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     However , there was no remarkable difference compared with the negative of the group of 10~4 mg·L~(-1) .
     质量浓度在10~4mg·L~(-1)剂量组彗星的头长和尾长与阴性组相比皆无显著性差异。
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     The length and the diameter of the common bile duct are (56.13±12.30) mm and (6.42±1.18) mm respectively.
     胆总管长和直径分别是(56.13±12.30)mm和(6.42±1.18)mm。
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     The Length of Conjugacy Classes and the Structure of Finite Groups
     共轭类的长和有限群的结构
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     A Short Comment on the English Grammar by ZHANG Zhen-bang
     简评章氏语法的长和
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本文较有系统地总结了上层建筑强度方面已有的成果,对其中若干主要问题进行分析和探讨并提出了一些新的见解.根据组合梁原理把上层建筑和船舶主体视为两相互弹性支座的梁材,再运用霍夫加(Hovga-ard)的假设(此两梁材的平均相对位移与接缝处的切应力强度成正比)可得出船舶主体——上层建筑的基本微分方程式.作者将上层建筑分为长的和短的,并按船棱和甲板室分别进行讨论,所得之结果与勃拉希(Bleich),希曼斯基和西凡尔斯(Cubepc)按其他方法所得之结果相同.作者证明,不论上层建筑的弯曲方向与船舶主体相同或相反,上层建筑的存在终是使船舶主体所受的弯矩降低,使上甲板的应力降低.此外,还对“反弯的上层建筑”和“最理想的上层建筑”提出了一些看法.

The radiation of a thin linear monopole antenna of any length erected at the tip and along the axis of a metallic spheroid of any length and eccentricity is analized. The monopole is excited at its base. General expressions for the fields are obtained.

本文分析了竖立在任意长的和任意偏心率的长金属椭球体的顶点上一个与椭球体同轴的并且底馈电的细线形单极子天线的辐射问题,获得了辐射场的普遍表示式。

Heterosis and genetic variance component studies on 36 wheat crosses and 14 parentsrevealed that:1.Yield per plant,kernels per spike and kernel weight of F_1 hybrids showed a markedheterosis over mid-parental values by 20-30%.Plant height and date of heading ranked next,which averaged about 10% in magnitude,being negative in direction for heading date.Fertilespikelets per head manifested only a slight degree of heterosis.F_(1-)MP's for these characterswere highly significant as shown by t-tests.However,head...

Heterosis and genetic variance component studies on 36 wheat crosses and 14 parentsrevealed that:1.Yield per plant,kernels per spike and kernel weight of F_1 hybrids showed a markedheterosis over mid-parental values by 20-30%.Plant height and date of heading ranked next,which averaged about 10% in magnitude,being negative in direction for heading date.Fertilespikelets per head manifested only a slight degree of heterosis.F_(1-)MP's for these characterswere highly significant as shown by t-tests.However,head length,kernel weight per head andheads per plant showed,on the average,no heterosis.2.Variability of heterosis of these characters descended in the following order:yield perplant→heads per plant,fertile spikelets per head→kernel weight per head,kernel perhead→kernel weight→heading date→head length,plant height.3.Heritability estimates (in the broad sense) as analyzed from F_1 data were from highto low as follows:head length→plant height→kernel weight→kernel weight per head→kernel per head,fertile spikelets per head→heads per plant,yield per plant.4.Relative values of general comining ability (g.c.a.) from high to low were as follows:head length,fertile spikelets per plant→plant height,kernels per head→kernel weight perhead→kernel weight,heads per plant→yield per plant.For yield per plants,specific com-bining ability played an important role.5.There was a close relation between the general combining ability value and the cor-relation or regression coefficient of F_1 on m(?)d-parental values.The larger the g.c.a.value,the higher the correlation or regression coefficient,indicating that many characters of F_1 hybridswere determined to a certain extent by parental means.The r or b value became non-significantas the g.c.a.decreased below 40%.6.In predicting the breeding value of parents or hybrid combinations,actual performanceof F_1 hybrids should be emphasized first.The extent of heterosis might also be of value,sincea part of heterosis arisen from epistasis could be fixed in later generations.Mid-parentalvalues were of considerable importance.

本文通过优势和配合力的分析研究小麦亲本选配问题。试验表明:杂种第一代的一株粒重、一穗粒重、千粒重的优势最大,一般比两亲平均值大20—30%;其次为株高和抽穗期:其他穗部性状的优势很小或无显性。应用遗传变量成分分析法估算八个性状的配合力,在供试的亲本中,以穗长和结实小穗数的一般配合力为最大;株高、一穗粒数和一穗粒重次之;千粒重与一株穗数,一般配合力和特殊配合力所占的比重互有高低,因组合类型而异;一株粒重的一般配合力最小,它的特殊配合力占居主导地位。一般配合力大的性状,杂种与两亲平均值的相关或迴归系数也大。初步认为,在第一代对亲本或组合的评价,既要看杂种的实际表现,还要考虑它的优势,而以前者为主要依据;两亲平均值也有相当重要的意义。

 
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