查询词典 structure constant

Profile and characteristic of refractive index structure constant.

大气折射率结构常数垂直分布特征。

Discussion of using the backscattering echo to measure turbulent atmosphere structure constant of refractive index.

利用后向散射测量大气湍流强度的探讨。

The result indicates that the impact of inner-scale on scintillation is important,at the same time the scintillation index varies with the wave length and structure constant of atmospheric.

结果表明：湍流内尺度对激光大气水平传输过程中的光强闪烁效应具有重要的影响，同时闪烁指数还随着传输激光的波长和大气结构常数等的变化而变化。

Large aperture laser scintillometer for measuring the refractive index structure constant of atmospheric turbulence.

测量大气折射率结构常数的大口径激光闪烁仪。

Mol of amount of substance unit is consists of 2 dimensional space , minus 1 dimensional time and an coefficient of a (theoretical value of fine structure constant , a = 1 / 137), its physical expression has upgraded into

物质量单位摩尔是由2维空间，负1维时间和精细结构常数构成的，其物理学表述升级为

According to the generalized Huygens-Fresnel principle, the peculiarity of laser beam intensity distribution is simulated under the different condition such as refractive index of atmospheric structure constant and transmission pace and laser wavelength.

根据广义惠更斯-菲涅耳原理，对TEM00模和TEM10模光束在不同大气折射率结构常数、传输距离和传输激光波长条件下的光强分布特性进行数值模拟。

The effects of the structure constant of the refractive index fluctuations Cn2 and the inner scale of the turbulence l0 on the M2 factor have been analyzed quantitatively. Consequently, a new method for determining the characteristics parameters of the turbulence based on the measurement of the M2 factor by experiments has been proposed.

定量分析了表征大气湍流参数的折射率结构常数Cn2和涡旋内尺度l0对M2因子的影响，并由此提出了一种通过实验测量大气湍流中光束的M2因子，进而确定出大气湍流参数的新方法。

The result indicated:Without considering the influence of atmospheric turbulence,the visibility is higher,the beam intensity attenuation is smaller;Under the condition that only considered the atmospheric turbulence influence,wave length of transmission laser and refractive index of atmospheric structure constant have an important influence on beam intensity distribution.

结果表明：在不考虑大气湍流影响的条件下，能见度越高，光强衰减越小；在只考虑大气湍流影响的条件下，传输激光的波长，大气折射率结构常数，对激光远场光强分布具有重要影响。

Planck constant and spin quantum number are calculated by the spacing of the twin line.These have high precision compared with theory value. sodium atomic spectra ; fine structure constant α; spin quantum number s

文献[2]用双光栅单色仪取代平面光栅摄谱仪研究钠原子光谱，能明显观察到谱线双重结构不同成分间的强度比

More economic and trade Co., Ltd. is established in 2003, is committed to a few sets of light steel structure fittings, in a very short period of time, our products have been with the development of light steel structure constant updating and improvement of our products has been widely used in all parts of the country in light steel building.

昆明宁越经贸有限公司是2003年成立，是国内少数几家致力于成套轻钢结构配件，在很短的时间内，我们的产品已随轻钢结构的发展而不断更新和完善，我们的产品已广泛运用在全国各地的轻钢建筑中。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。