The contact part of the concentrator and the material is made with the stainless steel,resistant to corrosion and meeting the standard of the GMP.是什么意思_The contact part of the concentrator and the material is made with the stainless steel,resistant to corrosion and meeting the standard of the GMP.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句