A new type of moving petticoat pipe structure and petticoat pipe seal which fit for forced circulation way is introduced.A kind of flexible fastening of moving petticoat pipe is also recommended.是什么意思_A new type of moving petticoat pipe structure and petticoat pipe seal which fit for forced circulation way is introduced.A kind of flexible fastening of moving petticoat pipe is also recommended.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句