at random 任意,随便; 任意地,随机地; 随便地,任意地; 随机的,任意的; 随机地,任意地; 随意地,任意地; 随意地,随机地
random n. 〔罕用语〕胡乱行为,偶然的[随便的]行动[过程]。 adj. 1.任意的,胡乱的,随便的;(话等)信口乱说的;(人等)偶然碰到的。 2.随机的;【物理学】无规则的;(石工)(大小)不齐的。 a random guess 瞎猜。 a random shot 乱射(的子弹);流弹。 at random 碰运气地;无目标地,漫无目的地。 n. -icity 随机性,无规性。
Regions that are untouched by normal random changes typically are important ones , and thus are conserved by evolution 这些区域并没有发生随机变化,因此被进化完整地保留了下来。
Under finite size of neuronal membrane , the transmembrane potential will fluctuate due to the random changes of conformational state of ion channels embedded in the membrane 在考虑有限大小膜面积时,神经元系统由于膜上通道的随机开关而使神经元本身具有了随机性。
In this thesis we analyze in detail the influence , created by random change of the optical wave polarization , on the output of the interferometer . then several principles of eliminating polarization - induced fading are introduced , and the principle that inserting two faraday rotator mirrors into the end of michelson fiber interferometer to eliminate the fading is analyzed in detail . this method can eliminate polarization - induced fading without additional signal processing , and make the output of the sensor stable 其中,本文详细分析了光波偏振态的随机漂移对干涉仪输出的影响,介绍了目前几种消偏振衰落技术的原理,着重讨论了在光纤michelson干涉仪末端加两个法拉第旋转镜的消偏振衰落的原理,该方法不需要任何附加的信号处理就可以消除偏振衰落,使干涉仪输出稳定。