A model for estimating the lowest economic storage of the natural gas hydrate resources exploitation was proposed based on the net present value method,and the natural gas hydrate resources in several regions of the world were evaluated by this model.
提出了以净现值法为基础的天然气水合物矿藏开发最低经济储量的模型,并对世界一些地区的资源进行了评估。
The optimum sustainable yield in fishing industry is the yield that can achieve the maximum sustainable net profit.
渔捞业中的最佳经济产量是指能使持续的纯利润最大的产量 ,此时投入的捕捞努力量为最佳经济捕捞努力量 。
According to the definition of the economic yield,the paper research the economic yield analytical methods of the old well,the new well and improved well.
根据经济产量的定义 ,对老井、新井及措施井的经济产量分析方法分别进行研究。
The quality character and economic yield of content of andrographolide,dehydroandrographolide,total content of both androgr.
结果密度对穿心莲的株高、鲜质量、干质量、脱水穿心莲内酯的量有极显著影响;磷肥对穿心莲内酯量、脱水穿心莲内酯的量、内酯总量等质量性状及经济产量有极显著影响;氮肥对穿心莲的干质量、穿心莲内酯的量、脱水穿心莲内酯的量、内酯总量的经济产量有显著或极显著影响;磷肥,磷、氮互作对经济产量影响较大;鲜质量与干质量间相关极显著;质量性状间、质量性状与经济产量间相关显著或极显著。
The results showed that the maximum biological and economic yield was gained under the density of 25 thousand plant/667m2 and higher N application amount,the optimum input and output ratio was 1∶8.
5万株/667m2时,较高的施氮水平有利于获得最大的生物群体产量和经济产量,田间密度在1。
This fact makes Maximum Economic Yield or MEY results almost impossible.
这使得最大经济产量研究几乎不可能。
RESEARCH ON ANALYSTICAL METHOD FOR INITIAL OUTPUT IN OILFIELD DEVELOPMENT;
油田开发初始经济产量分析方法研究
economy of mass production
大量生产的经济节约
Econometric Model of Production and Total Output of Fujian Province;
福建省生产与总产出的计量经济模型
The Products' Exergy Economic Analysis of the Polygeneration Energy System
多联产能量系统产品的火用经济分析
To manufacture or create economic goods and services.
大量生产生产或制造有经济价值的产品或劳务
Leontieff input-output econometric model
列昂惕夫投入产出经济计量模型
THE ECONOMETRIC MODEL OF INFORMATION TECHNOLOGY INDUSTRY IN CHENGDU CITY
成都市信息技术产业的计量经济模型
Study on the losses of wheat yield and the ELT to wheat root rot
小麦根腐病产量损失及经济阈值研究
Research on Model and Algorithm for Economic Lot Size Problem with Perishable Item;
变质性产品经济批量模型与算法研究
Econometric Model and Input-output in the Supervising System;
管理系统中经济计量模型与投入产出
Discussion on principles of economic classification by solid mineral resources/reserves;
试论固体矿产资源/储量经济分类原理
Research on Economic Total Amount and Industrial Structure Condition of Quanzhou City;
泉州市经济总量与产业结构状况研究
Dynamic Economic Analysis on the Three Industries Mutual Influence;
产业间相互作用的动态计量经济分析
Automobile Industry of Circular Economy in China Analysis by SWOT Model;
中国汽车产业循环经济的SWOT定量分析
National Economic Accounting,Public Goods and TQC;
国民经济核算、公共产品及其质量控制
An Economic Analysis on Product Quality Based on Customer Satisfaction;
基于顾客满意的产品质量经济性分析
The Innovation of Accounting Measurement on Intangible Asset Based on Knowledge Economy;
知识经济下无形资产会计计量的创新