1) nitrogen activity
氮活度
2) N16 activity
氮-16[放射性]活度
3) activity coefficient of nitrogen
氮的活度系数
4) reactive nitrogen
活性氮
1.
Being one of the important issues of global change,elevated reactive nitrogen has been increasingly concerned worldwide.
活性氮增加是当前全球变化的重要现象之一,已经对全球氮素循环产生了严重的影响。
5) Active nitrogen
活性氮
1.
Chemiluminescence of the reaction of active nitrogen with CHBr_3;
活性氮与三溴甲烷反应化学发光研究
2.
Strong emission spectra in the wavelength of 620～820 nm were detected when iodoethane (C2H5I) was added to a stream of active nitrogen, and the 35 spectral peaks have been assigned to the vibra- tional transitions of the NI(b1Σ+→X3Σ-) band system.
在流动余辉装置上,利用N2空心阴极放电制备活性氮,研究了活性氮与碘乙烷(C2H5I)反应的化学发光。
3.
Active nitrogen has been prepared by hollow-cathode discharge of N2 in a flowing afterglow system.
在流动余辉装置上,利用N2空心阴极放电制备活性氮,研究了活性氮与溴代烷烃(CHBr3、CH2Br2、C2H5Br、C4H9Br)反应的化学发光。
6) Reactive nitrogen species
活性氮
1.
Although some physiological effects of each component have been studied, the ability of Lei Zhen Zi as a combination form of nutrient supplement to scavenge directly free radicals, reactive oxygen species and reactive nitrogen species has never been investigated.
为研究该复方制剂的抗氧化作用 ,采用七种化学发光体系和一种比色体系研究了雷震子直接清除活性氧、活性氮和对·OH引起的DNA损伤的保护作用。
补充资料：表面活度计量
表面活度计量
area-activity measurement
boa飞lian hL汇心u JIliang表面活度计.(~一activityn丫努ISurelr犯nt)对平面源表面放射性活度(表面粒子.数或表面粒子发射率)，即单位面积在既球面度(立体角)内发射的粒子(。或p射线)数的测量。单位是‘’·cm一2，只能用于辐射防护中使用的发射。射线或p射线的平面源。 常用的测量方法是2二计数法、2邓计数法。将放射性物质电沉积在平面金属衬托板上，经校准成为标准平面源。常用的放射性核素有脚几、洲人m、洲叭、如Sr+如Y和I4C，其放射性活性面积可达100~x150~。(吕维纯李莱)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条