本发明提供一种结构：方向控制板安装在灯单元的排气口附近，且隔板安装成围绕排气口的前部和底部。
A direction control plate is fitted near an exhaust aperture of a lamp unit, and a partition plate is fitted so as to surround the front and the bottom of the exhaust aperture.
木材覆盖墙壁、地板和天花板，还有厨房单元的前部。
Timber covers the walls, floors and ceilings, and also fronts the kitchen units.
可摘局部义齿前腭板的前部是影响发音的主要部位。
The main area which effects the acoustic characteristics is the anterior part of the anterior palate plate of the removable partial denture.
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