We optimized the other two important components of the catalytic water heater, the venturi pipe and nozzle.
文丘里管和喷嘴是催化燃烧热水器的关键组分，实验中对二者进行了优化。
The plastic water pipe and the nozzle have not placed at will ground or soak in the basin.
塑料水管及喷头没有随意地放在地上或泡在水池里。
When the steamer is insufficient in water inside, the upper cover on the top of the water injection pipe is opened, and liquid water is poured in from a nozzle so as to replenish water in the steamer.
当锅内水量不足时，打开注水管顶部上盖， 从管口倒入液体水，对锅内进行补水便可。
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