1) lower abundance 13C
低丰度13C
1.
To investigate the validity of lower abundance 13C-urea in urea breath test(13C-UBT), 53 subjects are randomly divided into three groups consisted of 16,17(with one counted out) and 20 subjects, each of which is performed 13C-UBT using 13C-urea with different 13C abundance of 83.
结果表明,较低丰度13C-尿素(丰度为83。
2) ~(13) C nature abundence
13C自然丰度(δ13C)
3) low abundance
低丰度
1.
The analysis indicates that the unit operation of horizontal wells and vertical wells in reservoirs of low abundance occupies a dominant position in benefit, effectiveness of exploitation and.
根据已投产水平井的生产状况,分析水平井开发动态特征、影响产能的主要因素、递减情况,以及水平井在低丰度油藏的适应性及潜能。
2.
Lithologic oil-gas fields with low abundance in China have enormous resource potential and reserves scale which are widely distributed in Mesozoic-Paleozoic stratum and possess favorable geological background for the formation of oil-gas reservoir.
我国低丰度岩性油气田具有很大的资源潜力和储量规模,在中、古生代地层均有广泛的分布,具备良好的油气地质背景和成藏条件,是未来油气勘探的重点领域,其形成条件及富集规律不明。
3.
Efficiency to catch target signal with low abundance is advanced by the method.
本系统有效地改善了低丰度表达基因的检出率。
4) low abundance area
低丰度区
5) special low abundance
特低丰度
1.
Effect of sedimentary facies distribution of special low abundance oil layer on horizontal well pattern development;
特低丰度油层沉积相分布对水平井网开发效果的影响
6) medium-low abundance
中、低丰度
1.
Principal characteristics and forming conditions for medium-low abundance large scale oil/gas fields in China;
中国中、低丰度大油气田基本特征及形成条件
补充资料：低都儿低
1.低而又低，很低。
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