Topsflo DC Pump Solar Powered Water Circulation Pump Brushless DC Pump Solar Pump System Description: Features 1. Voltage: 6V-24V DC (Rate:12V DC) 2. Soft start at very low in-rush current, good convenient working directly...
“白开水”在英文中没有直接对应的翻译,但是我们也不能望文生义说成“white hot water”,而是应该用英语解释清楚它的意思。 白开水 plain/pleɪn/ boiled water “plain”作为形容词的意思是“朴素的;不加修饰的;简单的”,用来形容水就是...
because in northern China, it rains significantly less in this season, and spring drought is common. Therefore, Rain Water is considered as a key period for irrigation when the day gets warmer.然而中国也有句谚语:“春...
China has set an ambitious goal of developing a world-class megalopolis in the water-scarce Beijing-Tianjin-Hebei (BTH) region. This study investigates the water challenge the BTH region faces and the effects of main water conservation measures in the region towards the goal. An inter-city ...
The main two characteristics of a membrane process are flux and rejection. If an RO membrane is considered as permeating water only, the water and solute flux can be written as: $$J_{w} = A \left( {\Delta P - \Delta \varPi } \right),$$ ...
Enyigba in south-eastern Nigeria is one of the agrarian communities facing water scarcity challenges. The open cast mining activities in the region are also compounding the water problems as a result of leakage of heavy metals that pollute the limited water resources. This study is conducted to ...
Marginal cost pricing: Marginal cost analysis and pricing of water and electric power: Methodology notes by Yves Albouy Inter-American Development Bank, 808 17th Street, NW, Washington, DC 20577, 1983, 216 pp 来自 EconPapers 喜欢 0 阅读量: 14 作者: TW Berrie 年份: 1985 ...
{"widgetVisibility":"signedInOrAnonymous","useTitle":true,"useBackground":true,"title":"Resources","lazyLoad":false},"__typename":"QuiltComponent"}],"__typename":"MainSideSectionColumns"}}],"__typename":"QuiltContainer"},"__typename":"Quilt","localO...
买水不要说”water“,老外竟然听不懂! 在国外口渴想点水喝 服务员一般会问still or sparkling? 只会water的话, 可能你点不到想喝哦~ 让辉哥教你各种“水”吧~ (免费学习视频内容,每天更新,还不快关注) 课代表总结: still(不带气的水) sparkling(带气的...
In northern China, the spring drought is common and the precipitation of this season accounts for only 10 to 15 percent of annual average rainfall. 在北方地区,“春旱”是常见的。春季的降水量只占年平均降水量的10%-15%。 Therefore, Rain...