水源

The two tree water consumption characteristics, Populus simonii and Robinia pseudoacacie, and the interactions mechanism with environment factors were both studied at the level of leaf and singletree in terms of the modern technology of heat pulse sap flow and thermal dissipation sap flow probe. The two main purposes of study are to provide the science evidence in estimating the ecologic water consumption rules and to arrange better densities of the two tree species stand.

本文以北京市官厅库区水源涵养林的主要造林树种：小叶杨、刺槐为研究对象，采用当前国内外最先进的热脉冲式树干边材液流测定技术和热扩散式树干边材液流测定探针测定技术，从叶片和单株水平上探讨了刺槐和小叶杨的蒸腾耗水特性以及它们与环境因子之间的影响机理，其结果不仅可为更精确地估计生态用水定额提供科学依据，而且也可为该区域这两种树种的选择及其合理林分的密度起到一定的指导作用。

In the process of solving it, the slack variable was introduced, which has an important physical meaning. If the slack variable of the solution has a larger value, it means there's an unknown water source.

在模型求解过程中引入的松弛变量具有重要的物理意义，如果解中松弛变量取值较大，则意味着存在未知水源。

The Cherokees look to the Great Smoky Mountains of North Carolina and Tennessee as their ancestral homeland and regard the rounded summits such as Clingman's Dome as places of refuge and healing, and sources of life-giving rivers.

彻罗基人把位于北卡罗来纳州和田纳西州的大烟山看作是祖先的家园，并把克林曼穹顶(Clingman's Dome)等圆顶山峰视为休息养生之地和蕴育生命的水源之头。

The second, and more significant, reason is socioeconomic: access to water is a basic right.

其二，同时也是更为重要的原因就是从社会经济学角度考量，获得水源是一项基本权利。

This paper presents mutagenic activity and organic pollutants, in which one raw water of drinking and normal process treated water are tested by Ames measure and analysed by chro-matography and mass spectrography.

通过对某饮用水源及经传统工艺处理的出水进行Ames试验及色谱—质谱联机分析，本文提出了两种水质的致突变性及水中所含有的有机污染物成份。

The spindle tree is same as traveller broadleaf plant , can be that the upper tourist of barren desert provides a source of water.

纺锤树和旅人蕉一样，可以为荒漠上的旅行者提供水源。

Alarm valve is connected to automatic sprinkler system, or cut off water, and start the alarm device.

报警阀是自动喷水灭火系统中接通或切断水源，并启动报警器的装置。

The results showed that at the standard atmospheric pressure, the highest density of bacteria can be obtained under the following conditions: distilled water, pH 7.60 and 50℃.

统计结果显示：在标准大气压下，从研究样品中获得最多细菌数的较优培养条件为：培养基水源为单蒸水；生长pH为7.60；培养温度为50℃。

This is a high degree of water surface to pump impeller center of the vertical distance, it allows a high degree of vacuum suction, can not be confused with manual water pumps or marked on the nameplate on the vacuum suction to allow a high degree refers to pump inlet section on the value of the vacuum, and Is a standard atmospheric pressure, water temperature 20 degrees Celsius circumstances, a pilot and a determination.

这个高度是指水源水面到水泵叶轮中心线的垂直距离，它与允许吸上真空高度不能混为一谈，水泵产品说明书或铭牌上标示的允许吸上真空高度是指水泵进水口断面上的真空值，而且是在1标准大气压下、水温20摄氏度情况下，进行试验而测定得的。

The high is the water surface to pump impeller center line of the vertical distance, it allows a high degree of suction on the vacuum can not be mixed up, pump product specifications or nameplate allows a high degree of vacuum suction on the pump inlet section refers to the vacuum value, and Standard chemical pump is a standard atmospheric pressure, water temperature 20 degrees Celsius case, trial and determination to come by.

这个高度是指水源水面到水泵叶轮中心线的垂直距离，它与允许吸上真空高度不能混为一谈，水泵产品说明书或铭牌上标示的允许吸上真空高度是指水泵进水口断面上的真空值，而且是在1标准大气压下、水温20摄氏度情况下，进行试验而测定得的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。