产品特点：Product Features:●可抽取含有大量水蒸气和微小固体颗粒（大颗粒可配置过滤器）的气体，这是其他形式真空泵（压缩机）所不可比拟的；It could be used to extract gas with a large number of water vapor and tiny solid particles (equipping filter can extract bi
