The custom of lighting the Olympic flame goes back centuries.
点燃奥运圣火的风俗可追溯到几个世纪前。
Back in Great Torrington, a spokeswoman for LOCOG said: 'The flame went out due to a malfunctioning burner.
让我们把目光转回大托林顿·伦敦奥组委的一位女发言人说:“火炬熄灭是由于燃烧器故障导致的。”
Then the influence on flame structure of supersonic combustion of ratio of length and deep of cavity, obliquity of back edge of cavity and different schemes of fuel injection were studied.
用这种方法研究了不同凹腔长深比、凹腔后缘倾角和不同燃料喷注方案对超声速燃烧火焰结构的影响。
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