In addition, you should avoid using a lot of external entities — such as external DTDs or imported XML Schemas — since opening and reading from a file is an expensive operation.
The external decked area is sheltered beneath an overhanging section of the floor above, with a sliding glass door opening the space up to the elements.
上部楼层的垂悬部分遮蔽着下面的外部甲板区域，滑动玻璃门将空间打开，与元素相呼应。
3
The stability of a large opening composites conic shell stiffened with nettings under axial compression, external pressure and their combination is calculated in this paper.