Low-flow toilets can save a lot of water.
节水厕所可以节省很多水。
Water Efficient Fixtures: Have you installed low Flow Showerheads?
节水装置：你是否安装了低水流淋浴头？
And that, combined with the low water flow, is probably promoting the growth.
很少量的这种菌群是很难清除的。 此外，它们与低流量水流一起作用，可能促进细菌增长。
This article introduces an air bubble method for low speed flow visualization in water tunnel.
本文介绍一种用于低速流动显示的空气泡方法。
You can fit a low-flow shower head to reduce your water use still further.
安装低流量的喷头可以进一步降低用水量。
You can fit a low-flow shower head to reduce your water use still further.
安装低流量的喷头可以进一步降低用水量。
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