It is presumed whether the electron temperature can rise up quickly in the early discharge and fall down rapidly during the discharge afterglow is the key to realize the alternate oscillation of self-terminating and recombination lasers in univalent ions of strontium in experiment.

分析了兩種激光交替振蕩的發(fā)射過程丁香五月婷婷六月、脈沖寬度特性和粒子數(shù)反轉(zhuǎn)機(jī)理又大又黄色视频日逼视频免费，認(rèn)為在放電早期和余輝期電子溫度的急劇升高和降低是Sr離子自終止和復(fù)合激光實(shí)現(xiàn)交替振蕩的關(guān)鍵所在黄片操n。

As one of the most important state luminescent materials, the long afterglow phosphors had been researched as early as 70s of 19 century.

作為固體發(fā)光材料中很重要的一類国产交换配乱婬视频，長(zhǎng)余輝發(fā)光材料的研究早在19世紀(jì)70年代就已經(jīng)開始国产性交大全。

At the same time, Fox led an effort to obtain infrared images of the afterglow using the Gemini North Telescope on Mauna Kea.

與此同時(shí)www.99riav45，福克斯領(lǐng)導(dǎo)的努力獲得紅外圖像的余輝使用北雙子座望遠(yuǎn)鏡莫納克亞山天津AA片毛片。

At the same time, Fox led an effort to obtain infrared images of the afterglow using the Gemini North Telescope on Mauna Kea.

同時(shí)538在线国产，F(xiàn)ox團(tuán)隊(duì)使用莫納克亞山上的大型雙子北座望遠(yuǎn)鏡努力獲取了它的紅外余輝圖像。