The important raw materials usually used in such thermosetting resin are bakelite,and metallographic specimen inlaying machine will be used in the same process.是什么意思_The important raw materials usually used in such thermosetting resin are bakelite,and metallographic specimen inlaying machine will be used in the same process.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句