藝術與建築詞典根目錄
....物件層面
........裝備與設備
............測量儀器 (層級名)
................測量裝置 (器械)
....................<程度範圍之測量儀器>
........................時計
............................<依形式區分之時計>
................................時鐘
....................................<依形式區分之時鐘>
........................................壁鐘 (木製外盒)
|||............................................氣球形壁鐘
|||............................................哥德式壁鐘
|||............................................燈籠形壁鐘
|||........................................橡子形時鐘