The change law of Penning ionization in atmospheric helium dielectric barrier discharges (DBDs) with air impurity was investigated.
8～1000Pa时放电中彭宁电离作用的变化规律。
[Method] The ecological footprint of Pengyang county in Ningxia in 1994～2004 was calculated by ecological footprint method.
[方法]采用生态足迹的方法,对宁夏彭阳县1994~2004年的生态足迹进行了计算。
To improve the accuracy of the mass measurement of atoms with great precision, the paper discusses the skill of trap ions and basic research methods in the research of the mass measurement of atoms with great precision, and analyses the properties of the charged particles in the Penning trap.
为了提高原子质量精确测量的精度 ,文中论述了原子质量精确测量研究工作中离子的囚禁技术和基本研究方法 ;分析了彭宁阱中双曲面电极场和磁场中带电粒子的运动 ;讨论了在原子质量精确测量研究中采用高电离态离子源和参考离子的优点 ,并对彭宁阱中采用高电离态离子源和强磁场技术及参考离子测量方法进行了论述 ;给出了汞原子质量的精确测量结果 ,对汞原子的两个同位素 1 98Hg和 2 0 4 Hg测量得到的数据分别为 1 97。
Investigation of Penning Ionization in Atmospheric Helium Dielectric Barrier Discharges With Air Impurity
含空气杂质大气压氦气介质阻挡放电中彭宁电离作用
McNally-Carpenter centrifuge
麦克纳利－卡彭特离心机
Research on Geological Hazard Assessment in Pengyang County, Ningxia
宁夏彭阳县地质灾害危险性评价研究
Research on Development Counter Measures of Changchengyuan Irrigation in Pengyan County,Ningxia
宁夏彭阳县长城塬灌区发展对策探讨
Jack E. Kiger, Stephen E. Loeb, Gordon S. May, Accounting Principle, Revised Printing, Random House1998.
吴水彭主编，《会计学原理》，辽宁人民出版社，1999年。
Research on the Methods of the Second Rural Land Investigation in Pengyang County of Ningxia
宁夏彭阳县第二次农村土地调查方法研究
Reservoir characteristics and pediction for favorable areas of jurassic in pengyang area of ningxia
宁夏彭阳地区侏罗系油藏特征及有利区预测
Cost effect analysis of emergency evacuation access to Ningde Nuclear Power Plant
宁德核电厂应急撤离路线代价利益分析
Xinhua News Agency, Xi'an, January 2, by wire (reporter Shaoyang Peng)
新华社西安一月二日电（记者彭少阳）
Mr. Peng Rui, the general manager , an information tech. expert, a senior engineer.
彭睿，总经理，高级工程师，电子信息专家。
10 Years Films of Peng Brothers;
鬼才双生儿——彭氏兄弟的电影十年
Thoughts about Industrial Exploitation after the Engineering of Returning Land to Forestry from Farming;
对宁夏彭阳县退耕还林工程后续产业开发的思考
Analysis of Autumn Corn Cultivation Techniques of the Whole Covering on Double Ridges and Planting in Furrows in Pengyang,Ningxia
宁夏彭阳县秋季全膜覆盖双垄沟播玉米栽培技术要点浅析
STUDY ON OPTIMIZATION MODEL OF LAND USING LOESS PLATEAU AREA--A CASE OF PENGYANG IN NINGXIA
黄土高原地区土地利用优化模式研究——以宁夏彭阳县为例
Research and Application of Leakage Protection and Sealing Technology for Coalfield Drilling in Ningxia
宁夏彭阳草庙地区煤田钻探防漏堵漏技术研究与应用
Clinging to His Pursuit: A Profound Reflection on the Past--Comment on Peng s New Novel Grass on the Plain;
执著的追求 心灵史的写照——评彭定安先生新著《离离原上草》
A Soul Record of Contemporary Intelligents--A Study on Peng Ding an s "Ripe Grass on the Prairie";
一部当代知识分子的心灵史——试评彭定安的长篇小说《离离原上草》
I would rather go to the movies
我宁愿去看电影.(宁可)