... 天然水质 natural water quality; quality of the natural water天然水质量quality of the natural water 天然水准面 natural level ...
双语例句
1
The draft amendment for natural mineral water standard is soliciting public opinions on the website of China's quality watchdog, which limits the level of bromate at 0.01mg/L.
The hydrology is a science to study naturalwater movement, the change state and rule of the water quantity and quality in time and space.
水文是研究自然界水的运动、水的数量和质量在时间和空间上变化状况及变化规律的一门学科。
3
First, the project analyses thequalityofnaturalwater and the influence of impurity on chemical water treatment, and then chooses the chemical water treatment technics of power plant.