求翻译：乙方不得在本楼或该单元外的任何部分或通过窗户向外部粘贴，张挂，展示或允许他人粘贴，张挂，展示任何种类的招牌，通告，广告，海报和霓虹灯。乙方的名称和业务性质可以在单元的门上标明，但形式，位置和文字须经甲方书面批准。是什么意思？

Party b shall not in any part of the building or outside the cell or outside through the window to paste, display, exhibit or allow others to paste, display, showing signs of any kind, circulars, advertisements, posters and neon. B the name and nature of business can be indicated on the unit's gates