Leftover food and unwashed dishes cover the dirty counters.
剩饭和没洗的盘子铺满了肮脏的台面。
Examine the pressure meter tube and valve, pressure meter cover glass, if it is dirty, clean it with diluted hydrochloric acid.
检查压力表管道及阀门是否畅通，灵活，压力表面玻璃如有污，可用稀盐酸拭净。
Good sanitation - keep environment clean, cover garbage, get rid of stagnant and dirty water, help to eliminate breeding places of parasite, vectors and secondary hosts.
良好的卫生习惯—保持环境清洁，盖好，排除积水等，可清除，传播媒体及第二寄主的滋生地。
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