negative grouping meaning in English
负性基
Examples
- Negative group velocity in the band gap range
禁带区域内负的群速度 - Product - limit estimates were used to calculate the recurrence rate . the results showed : there was not statistic difference of recurrence rate between er positive and negative groups
采用乘积限法计算受体表达阳性各组及阴性组肿瘤复发率并进行比较。 - Methods impedance pneumoplethysmogram ( ipg ) and impedance respirogram ( irg ) were detected in 64 cases of patients with phd , and investigate dmf rheogram positive rate , also analysed various parameters of ipg in positive and negative groups
方法对64例肺心病患者进行呼吸阻抗图和肺阻抗图检测，分组统计膈肌疲劳图形阳性率；并对阳性组和阴性组进行肺阻抗图各参数比较。 - There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers . few - femtosecond pulses have already been generated from ti : sapphire lasers , by means of combining self - phase modulation with negative group velocity dispersion , which is similar to the way of soliton generation
钛宝石激光自锁模的发现使得超短脉冲技术发生了革命性的变化，利用自相位调制和负群速度色散结合的类孤子产生方式，人们已经在钛宝石锁模激光器上得到了脉宽只有几个飞秒的光脉冲。 - The growth of com crystals at stearic acid monolayer was regular and both end of the crystals became sharp angles because stearic acid molecular has negative group . the crystals beneath dppc monolayers were oriented with the elongated hexagonal ( 101 ) face paralleled to the plane of the monolayer and smaller than those from bulk solution
) 01 )晶面与膜平面平行生长，而且，在相同结晶时间里，磷脂dppc单分子膜诱导下的com晶体的粒径比本体溶液中的com晶体粒径要大。