闪电

We can forecast that lightning will come from a thundercloud, but we cannot predict the exact time and place where the lightning will hit.

我们可以预测，闪电将来自thundercloud ，但我们无法预测确切的时间和地点将闪电击中。

While for the two lightning flashes with multi-striking-points return stroke in the Inland Plateau of China, the branch root of discharge channel is found to be beneath the thundercloud.

南方的多接地点回击的闪电为多次回击，回击后的K变化相对较弱；内陆高原多接地点回击的闪电为单次回击，在回击过程后跟随有长时间的云内放电过程，期间有活跃的K变化。

Applying the Large-scale multi-configuration Dirac-Fock wave functions, we calculated the parameters such as wavelength, oscillator strengths and excited energy for the transitions related to lightning spectra. The most important effects of relativity, correlation, and relaxation are included in the computational model. Comparison of the calculated results with experimental spectra shows that the spectra in plateau area have a distinctive characteristic. Beside the lines of lower excited state with n=3 in NII ions, transitions of NI and OI are increased, their excited energy is around 13~14eV, and there are rarely lines from OII ion.

将原子结构的理论应用於闪电光谱的研究，用多组态Dirac-Fock方法，计算了有关光谱线的波长、振子强度以及相应的激发态能量等参数，理论与试验观测资料进行比较分析后发现，高原地区闪电首次回击光谱的结构及跃迁特性与其他地区有明显的区别，除NII离子n=3的低激发态产生的跃迁谱线外，激发能量为13~14eV左右的中性NI和OI的跃迁增多，但很难观测到OII离子的跃迁谱线。

A pplying the Largescale multiconfiguration DiracFock wave functions, we cal culated the paramete rs such as wavelength, oscillator strengths and excited energy for the transitio ns related to lightning spectra. The most important effects of relativity, corre lation, and relaxation are included in the computational model. Comparison of th e calculated results with experimental spectra shows that the spectra in plateau area have a distinctive characteristic. Beside the lines of lower excited state with n=3 in NII ions, transitions of NI and OI are increased,their excited energy is around 13～14eV, and there are rarely lines from OII ion.

将原子结构的理论应用于闪电光谱的研究，用多组态DiracFock方法，计算了有关光谱线的波长、振子强度以及相应的激发态能量等参数，理论与试验观测资料进行比较分析后发现，高原地区闪电首次回击光谱的结构及跃迁特性与其他地区有明显的区别，除NII离子n=3 的低激发态产生的跃迁谱线外，激发能量为13～14eV左右的中性NI和OI的跃迁增多，但很难观测到OII离子的跃迁谱线。

They are natural hollow glass tubes formed in quartzose sand, or silica, or soil by lightning strikes and are formed when lightning with a temperature of at least 1,800 degrees Celsius instantaneously melts silica on a conductive surface and fuses grains together.

他们是由闪电撞击而成的在石英砂，硅石或土壤中形成的天然中空的玻璃管，同时闪电以1800摄氏度以上的高温迅速将硅石融化在一个可导的表面并融合成粒状。

〓The spectra in the range of 400～700nm for first return strokes of CG lightning flashes have been obtained in the Qinghai plateau using a slitless spectrograph, and new lines of 604.6nm and 619.4nm are recorded.

用无狭缝光栅摄谱仪，获得了青海西宁地区云对地闪电首次回击过程400～700nm波长范围的光谱，并首次在闪电的单次回击光谱中记录到了波长为604.6nm和619.4nm的谱线。

I would not recommend to spec into the survival tree until you have around 600-650 unbuffed agility, before Lightning Reflexes (which will bring you to around 800 raid buffed agility).

我不劝人使用生存天赋，直到你无BUFF有600-650的敏捷，在闪电反应以前（闪电反射在加满副本BUFF后能带给你800的敏捷）。

We cannot tell which lightning can hit something, for it happens sometimes. Two powers, natural power and artificial power, could both lead to dangers, maybe danger of scarcity or uncontrolling.

而这正是摄影师要提醒我们的，大自然的闪电，除了漂亮，壮观，也充满了危险性，说不清哪道闪电会击中什么，这种情况过去也经常发生。

Positive lightning ionizes the atmosphere more efficiently than negative lightning and can therefore travel longer distances.

正电荷闪电比负电荷闪电更能有效地将大气离子化，因此流动的距离也越长。

Can you send forth lightnings, so that they would go And say to you, Here we are?

38：35 你能打发闪电，叫闪电行去，并且对你说，我们在这里麼？

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。