Scarcely had the gas and the air entered the hearth when they began to form a very hot flame.

燃气和空气一进入炉膛，就开始形成灼热的火焰。

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The anthracite is the most valuable type of coal. It burns slowly, with little smoke and a very hot flame.

无烟煤是一种最有价值的煤，它燃烧慢，烟很少但火焰却很大。

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Blowtorch: a portable burner for mixing gas and oxygen to produce a very hot flame used for soldering welding and glass blowing.

喷灯：使混合气体和氧气产生更炽热火焰的便携助燃剂，常用于接合，焊接和玻璃吹制。

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Hendrix's flame burned hot and bright.

NPR: Jimi Hendrix On World Cafe

The patches come hot on the heels of the shocking news that the sophisticated "Flame" malware, which was found targeting computers in the Middle East and Eastern Europe, used a forged Microsoft digital signature to pass itself off as a Windows update.

MSN: Microsoft to Fix 28 Security Bugs in Monthly Patch