从1958年起，便已使用带有单顶置凸轮机的发动机。
Since 1958, an engine with a single overhead camshaft has been used.
皇穹宇是一个建在一层大理石底座上的单顶圆形建筑。平时，祭祀用品就存放在这个地方。
The Hall of Heavenly Lord is a single-gabled circular building, built on a single level of marble stone base, where the altars were housed when not in use.
群桩中桩身压缩由单桩静载试验得到的桩顶沉降与桩端沉降之差求得，群桩的桩端沉降由分层总和法计算。
The compression of the pile in the pile group can be determined by static load test. The settlement of the pile toe is calculated by layer wise summation method.
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