English translation for "经济管径"
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- economic pipe size
economical pipe size
Related Translations:
径: Ⅰ名词1.(狭窄的道路; 小路) footpath; path; track 短语和例子曲径 a winding path; 山径 mountain path2.(达到目的的方法) way; means 短语和例子捷径 an easy way; shortcut3.(直径的简称) diameter 短语和例子半径 radiusⅡ副词(径直) directly; straig
- Example Sentences:
| 1. | Economic pipe size
经济管径 | | 2. | Based on the analyses of the investment of nozzle tube net and relationship between the annual operation cost and tube diameter function of a fixed spray irrigation system , a mathematic model to calculate the economical tube diameter of a spray irrigation system is developed by using the minimum expense norm and nonlinear planning theory in engineering economic analysis , and a direct calculation formula for the economical tube diameter in unrestrained conditions is presented
摘要在分析了固定式喷灌系统的管网投资、年运行费用与管径函数关系的基础上，利用工程经济分析中费用最小化准则和非线性规划理论，建立了求解喷灌系统管网经济管径的数学模型，并给出了无约束条件直接求解经济管径的计算式。 | | 3. | Aiming at the present low efficiency of well irrigation works and through pumping tests and theoretical analysis , the paper derives a method for calculating the optimum water yield , the best lifting distance and economic pipe diameter of low pressure pipe delivery system of irrigated area by wells , increasing the efficiency of motor - pumped wells
针对目前井灌工程效率低下的问题，通过抽水试验，经过理论分析，推导出了井灌低压管道输水灌溉系统的最优出水量、最佳扬程和经济管径计算方法，从而可提高机井灌溉效率。 |
- Similar Words：
- "经济观察" English translation, "经济观察报" English translation, "经济观察家" English translation, "经济观点国际公司" English translation, "经济观念" English translation, "经济管理" English translation, "经济管理办公室" English translation, "经济管理改革委员会" English translation, "经济管理改善" English translation, "经济管理干部管国家考试指导委员会" English translation
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