1·Around the beginning of the 20th century there were actually some primitive solar water heaters on the consumer market.
大约20世纪初，消费市场上出现了一些原始的太阳能热水器。
2·And Rizhao's solar water heaters are not an aberration.
而且日照市的太阳能热水器并没有什么特异之处。
3·Water heaters are sized to meet the needs of users.
热水器是依照用户需求的尺寸制造的。
4·Note: Water Heaters may be direct or indirect fired.
注：热水器可以直接或间接加热。
5·Products are mainly Gas Water Heaters and Gas Cookers.
产品主要包括燃气快速热水器和燃气灶具。
6·Water heaters that could be pulled away from pipes and rupture.
可能会从管道上脱离并碎裂的热水器。
7·As a reference for designing condensing gas water heaters.
为燃气冷凝式热水器燃烧器设计提供参考。
8·We install tankless water heaters – then take longer showers.
我们安装即热式热水器，然后洗澡花的时间更长了。
9·All the buildings in this plot are equipped with solar water heaters.
整个小区都安装了太阳能热水器。
10·Research on thermal efficiency forecast method of solar water heaters.
太阳能热水器的热效率预测方法研究。