peak vi. 1.瘦弱;消瘦,憔悴。 2.减少,缩小 (out)。 peak and pine 消瘦;憔悴。 peak2 n. 1.山峰,山顶;孤山。 2.(胡须等的)尖儿;尖端。 3.最高点,绝顶;最大量;巅值,峰值;【物理学】波峰。 4.(衣着等的)尖形突出部;(帽子等的)鸭舌,遮檐。 5.〔方言〕岬,海角。 6.【航海】斜桁尖头;船头[船尾]尖舱;锚爪。 a flood peak 洪峰。 the peak performance 最高生产率。 the after peak (船的)尾舱。 peak position 〔美国〕棒球联赛的最高名次。 peak year 【统计学】最高纪录年。 vt. 1.竖起,使成峰状,使高耸。 2.使达到最高峰。 3.(划船休息时)直竖(桨等);(鲸鱼)竖起(尾巴)。 She pursed her pretty lips and peaked her eyebrows. 她紧闭美丽的双唇,竖起眉毛。 vi. 1.高耸,尖起;(桨等不划时)竖起;(鲸鱼等)翘起尾巴。 2.达到最高峰。
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On the basis of a lot of experimental data based on the orthogonal test of pulse peak electric current , pulse width and pulse intermission , experimental mathematical models of electric spark forming of several sorts of materials are built up with multiple linear regression analysis 摘要用正交试验法对电火花加工中的峰值电流、脉冲宽度、脉冲间隔进行设计,在大量实验数据的基础上,采用最小二乘法建立实用的多种材料的电火花加工实验数学模型。
It preliminarily establishes a set of test theory and technical approach to wind tunnel test . specifically speaking , it includes following work : ( 1 ) theoretical analyses on key parameters of ao effect were made . from maxwell equation , the computation formula for focusing intensity of ordered disturbance and the computation formula for pulse peak intensity were derived 初步建立起了一套气动光学风洞测试试验的理论和技术,完成的主要研究工作有: ( 1 )从理论上进行了气动光学主要参数的分析,从麦克斯韦方程出发,推导了有序扰动的聚焦强度的计算公式及脉冲峰值强度计算公式。
We apply the agrawal ' s theory model of soa , and study the temporal characteristics of the output pulse for input picosecond optical pulses with different sharpness edges passing through a semiconductor optical amplifier , and find that the peak power and the pulse width of the output pulse depend on the input pulse peak power , the sharpness degree of the input pulse edge and the bias current of soa 本文应用agrawal的关于soa理论模型,详细研究了具有不同陡峭边沿的皮秒超高斯光脉冲经soa后的时域特性的变化,发现输出脉冲的峰值功率、脉冲宽度与输入脉冲的峰值功率、输入脉冲边沿的陡峭程度以及soa的偏置电流密切相关。