At the same time the product has a basic type (IP67) and Explosion-proof, explosion-proof level for EXD II BT4, its explosion-proof level applicable to the factory premises explosive environment.是什么意思_At the same time the product has a basic type (IP67) and Explosion-proof, explosion-proof level for EXD II BT4, its explosion-proof level applicable to the factory premises explosive environment.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句