Optimal flushing conditions are presented according to the results of studying various factors affecting bottom hole flushing such as strata, structure of bit, working regulation, flow field of bottom hole, cuttinghold effect, infiltration law and so on.
把反循环钻进中循环液体视为刚体 ,以力矩平衡等理论为依据 ,建立井底净化模型 ,对影响井底净化效果的各种因素如地层、钻头结构、工作规程、井底流场、压持效应和渗透规律等进行综合研究 ,推出最优净化条件 ,通过室内及野外试验进行验证。
Farm manure, chemical fertilizer and straw had different sustainable effects.
通过长期定位试验（1986～1997年），采用正交旋转回归设计，在黑土地区不同培肥方式条件下，对土壤氮素持续效应进行研究。
The sustainable effect of different fertilizing matters on soil fertility in exhausted stage was observed.
以农家肥、化肥、秸秆、绿肥等培肥物质为试验因素,研究长期定位试验耗竭阶段土壤有机质的持续效应。
The test was pided into two stages: the first was fertilizing stage, ended in 1992; the second was exhaust stage, mainly to researchthe sustainable effect of e.
后一阶段为耗竭阶段，主要观测各培肥处理对土壤养分的持续效应及对产量的影响。
A Research on the Support Effects of the Tax Policy for Promoting Internationalization;
税收政策促进国际化的支持效应研究
The Performance Persistence of Chinese Investment Funds;
中国证券投资基金绩效持续效应研究
The Boundary Effect and Its Elimination in Chinese Text Reading: The Event Duration Effect;
中文阅读中的边界效应及其消除:事件持续效应
On the “Siege”Effect of Rural Tourism and Sustainable Development;
论乡村旅游的“围城”效应及可持续发展
Analysis on Effects of Tax Policies on Sustainable Development of Forestry;
税费政策与林业可持续发展效应分析
The Analysis of the Practical Effects of the Industrial Sustainable Development in Tibet;
西藏产业可持续发展的现实效应分析
E. The people who hold the card must pay commission charge before period of validity.
持卡者须在有效期前到俱乐部交纳相应手续费。
Spillover Effects of Foreign Direct Investment on the Sustainable Development in China;
外商直接投资对中国可持续发展溢出效应研究
Is There Persistence Effect of Monetary Shocks to Output?;
货币冲击对实际变量存在持续性效应吗
A Field of Vision for Sustainable Development: Analysis of Levying an Ecological Environment Tax and Its Policy Effect;
论可持续发展与开征生态税的政策效应
Performance Measurement for Green Supply Chain Based on Sustainable Development;
基于可持续发展能力的绿色供应链绩效测量
Incentive Mechanism, Feedback and Continuous Improvement of Supply Chain Performance;
激励机制、信息反馈与供应链绩效的持续改进
Effect of Monetary Policies in China under Sustained Favorable Balance of International Revenue and Expenditure;
国际收支持续顺差下的我国货币政策效应
Accumulating effect of basin and sustainable development of mining city economics;
“盆地聚集效应”与矿业城市经济的可持续发展
Dissipative Structure,Problems of Synergistic Effect and Regional Sustainable Development;
耗散结构、协同效应问题与区域可持续发展
Reflecting on the Double-effect of Homegrown Movies Probbing into Their Prospect of Sustainable Development;
反思国产大片的双重效应及其可持续发展之路
Economic Analysis on Consumption Effect of Developing Higher Education Continuously;
可持续发展高等教育消费效应的经济分析
A Study of Regional Brand Effect on the Basis of Sustainable Development of Industrial Cluster;
基于产业集群可持续发展的区域品牌效应探究
The Research of the Sustainability of Fiscal Deficit Based on the Nonlinear Effects of Fiscal Policy;
非线性财政政策效应下财政赤字可持续性研究