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.
A hydraulic computation equation for water distribution sytem of counterflow type naturaldraft cooling tower has been established by applying Bernoulli Equation.
运用伯努利方程建立了逆流式自然通风冷却塔（逆流塔）配水的水力计算方程。
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The influence of cross wind on the air flow field in a naturaldraft dry cooling tower is studied experimentally on the basis of similarity rules.