b-v的例句大全

The EL spectrum, the J-V and B-V characteristics have been measured, and the quantum efficiency has been calculated.

对器件的电流-电压特性、电压-亮度特性进行了测量，并计算了量子效率。

After deriving their effective temperatures and luminosities from their ( B-V), ( U-B) colors and parallaxes we find their positions in the HR diagram to be mostly confined to the main sequence.

在从样本星的色指数（B-V），（U-B）和视差得到它们的有效温度和光度之后，我们发现在赫罗图上它们大多数是位于主序带内的。

541 galaxie formed an obvious sequence along a diagonal of the two color diagram ( B-V)_T~ o ( U-B)_T~ o. This can be explaned by the different mixture of stellar population, which made up the galaxies.

541个星系在（B-V）T~O-（U-B）T~O两色图上沿一条对角线形成一个明显的序列，这可以从组成星系的红兰星的混合效应得到解释。

Using low concentration of hydrogen peroxide ( 30%) instead of peroxide organic acid as oxidant in B-V reaction is friendly to environment and with higher atom economy.

用低浓度的H2O2（30%）来代替传统的过酸作为B-V反应的氧化剂，对环境友好且原子利用率高。

In comparison with inactive normal stars with the same effective temperature, in general, the active stars covered by spots are more blue in B-V colours and their equivalent widths of Li I 6708(?)

与非活动的正常恒星相比，表面被黑子覆盖的活动星有更蓝的B-V颜色，它们的LiIλ6708（？）

In this paper, the research object was focused on the B-V oxidation of 1-indanone by using 30% hydrogen peroxide as oxidant and some liquid and solid acids as catalysts in solvent of 2, 2, 3, 3-tetrafluoro-1-propanol.

本论文着重研究以30%的H2O2为氧化剂、2,2,3,3-四氟1-丙醇作溶剂、三氟甲烷磺酸和其它固体酸作催化剂的反应条件下，1-茚酮为反应底物的B V氧化反应。

Linear gradient: B increased from 0 to 100% ( V/ V) in 15 minutes;

线性梯度：B在15min内由0%增至100%；

There exists function relation between dimensionless relative velocity u/ v and relative water depth and the main influential factors on coefficients-a, b, c and their corresponding functions are determined. 3.

对无量纲相对流速u/v与相对水深y/h之间存在很好的二次函数关系，并确定了系数a、b、c在不同区域下受到的主要影响因素及其相应的确定函数。

One of the oldest diseases in the world ( Ramesses V of Egypt, who died in 1157 B.C.E. apparently had it), smallpox killed 300 million people worldwide in the 20th century.

天花是世界上最古老的疾病之一（埃及拉美西斯五世在公元前1157年去世，有着明显的天花症状），它在20世纪使全球3亿人丧命。