The sacred flame and the circle are both symbols for Hestia.
圣火和圆圈是赫斯·提亚的象征。
At present, circle chain sawed adopts handwork and cutoff by flame under augmenting ventilation in coal work face of our country.
井下工作面圆环链主要是采用手工锯断或在加强通风条件下利用火焰割断。
By the method of circle heating chain analysis, the different mechanism of flame stability between bluffbody burner and slitting bluffbody burner were compared.
用回流加热链着火分析法，分析比较了钝体燃烧器和开缝钝体燃烧器不同的稳焰机理。
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