vault dome 中间隆起的拱形
The great vault brightened, like the dome of an immense lamp.
那广漠的天穹变得雪亮，犹如一盏巨灯的圆顶。
It referred to an actual firm kind of vault, like a dome, a ceiling, firmament and that's why in older translations it's called the firmament, because it is firm.
而只是一种坚固的拱顶，就像圆屋顶，天花板，这就是为什么古老的翻译把它翻为，因为它很牢固。
As a result of the different position of prestressing strands, the structure system has multiform space shape, such as barrel vault, hypar and dome.
通过改变预应力索在网架中的位置，可张拉得到不同的曲面形状，如柱面、穹顶和鞍形网壳。
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