upstream water level是什么意思

用法例句

The investigation and research on the blow down and water quality of Fen River upstream;

汾河上游排污及水质状况调查研究

The study on Company Z s strategy to develop upstream shows the analysis of development strategy driven by the upstream business;reveals the impact in five aspects of the competitive environments during the practice of upstream strategy;and presents the key problems of target selection,acquisition identification,and.

通过对Z公司向上游发展战略实施过程及特点的研究,分析了企业上游发展战略的驱动因素,提出了企业在上游发展战略过程中对竞争环境五个方面的影响,并分析了在并购过程中对目标选择、并购目标的确定、企业文化等方面应该注意的问题。

Analysis on Karst rocky desertification in upper reaches of Pearl River based on remote sensing;

珠江上游喀斯特地区土地石漠化现状遥感分析

In order to probe environmental effect and ecological security of upper reaches of Pearl River,the author chooses Guanling autonomous county of the Buyi and Miao as a base of research and comprehensively assets activities of this region since 1978 from the angle of historical and present situation by using mathematic model and AHP.

本文以珠江上游流域贵州省关岭布依族苗族自治县为研究对象,在建立了珠江上游流域县域生态安全预警指标体系基础上,利用数学模型和层次分析法(AHP),通过统计数据和调查问卷建立了生态安全预警评价数据库,在此基础上,探讨了1978年至2003年期间该区域经济、社会和生态环境变迁、现状及其发展态势。

From the strategies of these multinational petroleum corporations,several traits are emerging: the upstream business is strengthened and put in the core place;the upstream business is moving out of America and Europe;natural gas and renewable resources are developing rapi.

近年来,随着国际油价的上升和国际油气勘探市场形势的变化,国际著名的埃克森美孚、英荷壳牌、英国石油、雪佛龙德士古和道达尔菲纳埃尔夫这5个大型跨国石油公司都对上游业务发展战略进行了调整。