The themes for grade 3 will be: Solar System, Healthy Lifestyle, MixingAir, Life Cycle of a Silk Worm, Community Service, and Cursive Writing.
三年级将学到的主题内容是:太阳系、健康的生活方式、混合气体、蚕的生命周期、社区服务和草写体。
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Particle diameter is an important index for atomizing performance. In order to improve atomizing effect, a new internal mixingair-liquid atomizer has been tested.