Selective examination product of 29 kinds of ventilators, eligible 22 kinds, unqualified 7 kinds, sampling percent of pass only 75.9% .是什么意思_Selective examination product of 29 kinds of ventilators, eligible 22 kinds, unqualified 7 kinds, sampling percent of pass only 75.9% .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句