激发阈值,waken threshold value
minimum excited threshold最小可激发阈值
1.By means of projecting a reference light and measuring the light on the photocathode of a streak camera, theminimum excited threshold in electron trapping materials can be measured.０６４μｍ超短红外脉冲激光激励下，采用参考光和测量光同时入射的测量方案，利用一台可见光条纹相机进行了电子俘获材料ＣａＳＥｕ，Ｓｍ的红外最小可激发阈值的研究，结果表明：在可见光条纹相机最小可探测能量密度Ｊｍｉｎ＝８。
3)laser threshold激光阈值
1.The optimum match concentration for Yb 3+ ,Na+:CaF_2 with lowlaser threshold was obtained.基于975nm激发的室温下荧光光谱测量,系统地研究了在新型钠、镱共掺的氟化钙晶体中钠离子的作用机理,分析了掺钠离子浓度与激光阈值的关系,获得了具有最低激光阈值的掺杂浓度优化配比。
2.The analytical formulas oflaser threshold of the quasi-four-energy-level system for (Tm3+ ,Tb3+ ) :LiYF4 are deduced from rate-equation of transition.由速率方程推出了双掺(Tm~(3+),Tb~(3+))离子准四能级系统的激光阈值解析式,讨论了Tm~(3+)和Tb~(3+)离子之间的相互作用。
4)lasing threshold激光阈值
5)activation threshold激活阈值
6)stimulus threshold刺激阈值
1.Thestimulus threshold,maximal stimulus,peak value of compound action potential and refractory period were measured on the toad sciatic nerves after 30 seconds while adding ethanol or acetaldehyde of different concentration with Ringer solution.将含有不同浓度的乙醇、乙醛的任氏液滴加到蟾蜍坐骨神经表面,30 s后测定神经干刺激阈值、最大刺激值、复合动作电位峰值和不应期等电生理指标。
延伸阅读
初恋激发阈初恋激发阈arousal threshold of first love初恋激发闭(arousal threshold of firstlove)能够激起初恋的最低内、外刺激强度。影响激发闽的因素有:(功对自我和对方的爱情价值的评价。(2)因人而异的生殖结构，性机能强、早熟则激发阂低。(3)环境因素，如周围的男女交往风气。其中最重要的是对自我和对方的爱情价值的评价，这因初恋者的年龄、修养、文化水平的不同而不同。幼稚的心灵，根本不能对自身、对对方的爱情价值作出正确评价，只凭一时冲动、好奇，初恋的激发阐很低。反之，有教养、有文化及品德修养好的青年，初恋的激发阂就高。(周菊花撰荡杏嘉审)
