查询词典 luminescence

The result indicated that not only the purity of silica materials was important to luminescence of phosphor but also the finestiny, magnesium materials were not so important only when they were A.R. degree. Doping of Gd3+ helped to enhance the long-lasting phosphorescence of phosphor .

掺加Gd~(3+)离子有助于发光材料余辉性能的提高，并且当Gd~(3+)/ Dy~(3+)=3 ： 2时，亮度较不添加Gd~(3+)的Sr_2MgSi_2O_7： Eu~(2+)，Dy~(3+)有大辐提高，这是由于Eu~(2+)与Gd~(3+)之间存在能量传递作用。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。