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major axis
相关语句
  主轴
    At the frequency of 40kHz, the -3dB beamwidth of the vertical beam of the whole head is approximately 21.6, its major axis elevated 10 above the rostrum plane;
    在40kHz时整体头垂直波束—3dB束宽为21.6°,主轴相对于吻平面有10°仰角;
短句来源
    the -3dB beamwidth of the horizontal beam of the whole head is approximately 20, its major axis deviated 12 right-ward from the body axis.
    水平波束—3dB束宽为20°,主轴相对体轴右旋12°。
短句来源
    The vertical and horizontal -3dB beamwidths of the whole head are 9.4 and 13 narrower than those of the skull respectively, and directions of the major axis are different for the both cases.
    束宽分别比头骨骨骼的测试结果窄9.4°和13°,主轴的指向亦产生变化。
短句来源
  “major axis”译为未确定词的双语例句
    It offers a simple method estimating β, γ angle and determining the directions of major axis of permittivity of crystal plate.
    提供了估计晶片β、γ和确定它的主介电轴方向的简易方法。
短句来源
    RESEARCH ON THE NATURE OF THE CONJUGATE IMAGE OF THE POINT ON THE MAJOR AXIS AT A DISTANCE FROM THE CENTER OF A LARGE-APERTURE SPHERE MIRROR
    大孔径球面镜轴外点的共轭象性质研究
短句来源
    In this paper, we have studied accurate solution of gradient refractive index ellipsis cylindric optical guide, and gived charactevistic eguation, cutoff wavelength as well as general formulas of optimum rate of major axis and minor axis.
    本文研究了阶梯折射率椭圆柱状光波导的精确解,并给出特征方程、截止波长和长短半轴最佳比的一般公式。
短句来源
  相似匹配句对
    It offers a simple method estimating β, γ angle and determining the directions of major axis of permittivity of crystal plate.
    提供了估计晶片β、γ和确定它的主介电轴方向的简易方法。
短句来源
    RESEARCH ON THE NATURE OF THE CONJUGATE IMAGE OF THE POINT ON THE MAJOR AXIS AT A DISTANCE FROM THE CENTER OF A LARGE-APERTURE SPHERE MIRROR
    大孔径球面镜轴外点的共轭象性质研究
短句来源
    The major content and result are as follows:
    主要研究内容和结果如下:
短句来源
    Major innovation of this thesis:
    本文的创新之处:
短句来源
    Analysis of Electric Axis Method
    电轴法分析
短句来源
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  major axis
At the phase plane "the longitude of the subsatellite point-semi-major axis" the regions of migration of separatrices where the separatrices can move due to the influence of perturbations are isolated.
      
The dimensions of these regions and the distances between them have the same order of magnitude, several kilometers along the semi-major axis.
      
Flow past an oblate ellipsoid of revolution aligned along the major axis
      
We found no evidence of gas rotation around the major axis of NGC 6286, which argues against the assumption that this galaxy has a forming polar ring.
      
We found no significant deviations from the circular rotation of the galactic disk in the velocity field in the regions of brightness excess along the major axis of the galaxy (the putative polar ring).
      
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The melon is an important component in the dolphin sonar system. The acoustic function of the melon of Chinese river dolphin (Lipotes vexillifer) was studied. Based on the comparison between the directivity patterns of the whole head and the skull, it is suggested that the melon plays an important role in beamforming. At the frequency of 40kHz, the -3dB beamwidth of the vertical beam of the whole head is approximately 21.6, its major axis elevated 10 above the rostrum plane; the -3dB beamwidth of the horizontal...

The melon is an important component in the dolphin sonar system. The acoustic function of the melon of Chinese river dolphin (Lipotes vexillifer) was studied. Based on the comparison between the directivity patterns of the whole head and the skull, it is suggested that the melon plays an important role in beamforming. At the frequency of 40kHz, the -3dB beamwidth of the vertical beam of the whole head is approximately 21.6, its major axis elevated 10 above the rostrum plane; the -3dB beamwidth of the horizontal beam of the whole head is approximately 20, its major axis deviated 12 right-ward from the body axis. The vertical and horizontal -3dB beamwidths of the whole head are 9.4 and 13 narrower than those of the skull respectively, and directions of the major axis are different for the both cases. It can be seen obviously that the melon narrows the width of main beam and greatly reduces the side lobe of the beam formed by the skull. The distribution of sound velocity in the melon tissue was measured and the distribution pattern was drawn. From the figures it can be seen obviously that there is a low velocity core at the right posterior-inferior melon. The farther is the distance from the core, the higher is the sound velocity. The density of the sound velocity contour i.e. the velocity gradient at the left side of the core is less than that at the right side. The sound velocity in the vicinity of the melon skin is close to the sound velocity in water. The melon plays a role of acoustic impedance match. The sound ray trace patterns in vertical and horizontal planes are obtained according to Snell's law and by means of geometrical method. The role of the melon in beamforming is explained in the paper. We did similar tests in Tursiops truncatus and Neophocaena phocaenoides, and obtained similar results.

额隆是海豚声呐系统的重要部件。我们以白鱀豚为材料,对额隆的声功能进行了研究。通过整体头和头骨声指向性的对比,揭示了额隆的波束形成作用。在40kHz时整体头垂直波束—3dB束宽为21.6°,主轴相对于吻平面有10°仰角;水平波束—3dB束宽为20°,主轴相对体轴右旋12°。束宽分别比头骨骨骼的测试结果窄9.4°和13°,主轴的指向亦产生变化。额隆把头骨初步形成的波束主瓣变窄,并对旁瓣有较大的抑制。测试了额隆组织的声速分布,给出了声速分布图。在额隆的右后下方有一低速核,离此核愈远,声速愈大。核的左面等速线密度小声速梯度小;而右面等速线密度大,声速梯度大。接近表皮时声速已接近水中的声速,表明额隆的声阻抗匹配作用。按斯奈尔定律,用几何法做出额隆垂直和水平面的声线图,解释了额隆的波束形成作用。还以胆鼻海豚和江豚为材料进行了类似工作,得到大体一致的结果。

In this paper, we have studied accurate solution of gradient refractive index ellipsis cylindric optical guide, and gived charactevistic eguation, cutoff wavelength as well as general formulas of optimum rate of major axis and minor axis.

本文研究了阶梯折射率椭圆柱状光波导的精确解,并给出特征方程、截止波长和长短半轴最佳比的一般公式。

The order parameter S of 26 dichroic dyes of anthraquinone type were determined. The lengths, l of projection on the molecular major-axis of π-electron cloud of the dyes were calculated. The S were found increasing with l. The dipole moments of molecules in ground state and excited state were calculated with the help of PPP-D procedure, The order parameters of dye molecules in liquid crystal were found increasing with decrease of angles between dipole moments of molecules in ground and exited states....

The order parameter S of 26 dichroic dyes of anthraquinone type were determined. The lengths, l of projection on the molecular major-axis of π-electron cloud of the dyes were calculated. The S were found increasing with l. The dipole moments of molecules in ground state and excited state were calculated with the help of PPP-D procedure, The order parameters of dye molecules in liquid crystal were found increasing with decrease of angles between dipole moments of molecules in ground and exited states. These results provide a theoretical basis for designing anthraquinone dyes with high order parameters.

本文测定了26个蒽醌型二色性染料的有序参数S,计算了染料分子π电子云在分子长轴上的投影长度l,发现S随l的增长而增大,当长度达到2nm左右时,增大趋势就十分缓慢。用PPP-D程序计算了染料分子的基态和激发态的偶极矩,发现染料分子在液晶中有序参数随着染料分子基态和激发态偶极矩之间夹角θ的减小而增大。

 
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