短語詞組短語Projection optical apparatus 發(fā)明名稱electron beam projection exposure apparatus 電子束投影曝光機film projection apparatus 電影器材electronic projection apparatus 電子投影設(shè)備Projection type display apparatus 發(fā)明名稱electronic organ projection apparatus 電子投影設(shè)備film phonograph projection apparatus 電影器材Transparency projection apparatus 幻燈片放映設(shè)備Focusing apparatus in projection television 發(fā)明名稱 返回 projection apparatus