基于环形圈加谐振管的热声发动机的两自由度模型构思，在调相机理上开展了工作。
The mechanism of phase modulation is investigated based on the model of two degree of freedom in the thermoacoustic prime mover consisting of a looped tube and the resonator.
佛罗伦莎的官员们无法说服当地居民委员会接受来自中国的雕像，就算放在郊区道路交叉口的环形圈也不行。
Officials in Florence cannot now persuade local residents' committees to accept the Chinese statues, even if they are tucked away by roundabouts on the outskirts of town.
CT扫描器包括一个不是特别窄的移动检测床，它可以将人慢慢地拖行至一个环形通道，其形状就像是一个巨大的甜甜圈。
The CT scanner consists of a moving couch, not particularly narrow, that slowly moves a person through a hoop that has a shape of a very large donut.
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