風選機英語怎麼說及英文翻譯

1. 請問，「閉風器」的英文是什麼

閉風器有兩種說法
closed-air aspirator ，air-lock valve

參考例句
eight-route automatic monitoring display alarm system for the closed-air aspirator in flour processing
麵粉加工閉風器組八路自動監測顯示報警系統的研究

the design and applicating of desting network,and the aspirating network of cleaning machine,gravity selector and aspirator of soybean hull in soybean pretreatment plant were introced.
簡要介紹了大豆預處理車間除塵網路、清理篩吸風網路、比重分級去石機吸風網路、豆皮風選器吸風網路設計與應用情況 ;