The Air Force is sponsoring a University of Washington research effort to generate power using a bacterial pigment that can convert solar energy to electricity, Defense Newsreports.
据防务新闻报道，空军正在资助一个华盛顿大学的研究小组以使用细菌涂料通过将光能转化为电能，以此来发电。
The use of frequency convert to regulate the speed of rotation according to the character of mine fan can reach the goal of the modulation of air flow and have a very good effect of saving energy.
根据矿井通风机的特性，使用变频器进行转速调整以达到调节风量的目的，且有很好的节能效果。
Relay valves convert a sustained air flow from a three-way pilot valve into a momentary pulse or bleed, which shifts a control valve and then closes.
延迟阀可调节从三通控制阀到瞬间脉冲或放气阀的空气流量，放气阀或瞬间脉冲改变控制阀，然后关闭。
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