Aspen isn't very flammable, making for a slow-burning, non-fingertip-singeing matchstick.

山杨并不易燃，有利于制造慢速燃烧、不致烧伤手尖的火柴棍。

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Yoshihiko Noda, the new prime minister, faces several vast but slow-burning problems, from an ageing population to massive public debts.

日本新首相野田佳彦面临着几个巨大但不紧急的问题，从老龄化的人口到混乱的公共债务。

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In Arctic North America, the Eskimos produced a slow-burning spark by striking quartz against iron pyrites, a compound that contains sulphur.

在北美北极圈地区，爱斯基摩人生产火星通过黄铁矿和石英对撞，产生一种化合物包含硫磺。

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Mr Paisley has been sapped by age and by slow-burning resentment at his new politics.

ECONOMIST: What next for Ian Paisley?

That, in itself, is one reason why this will be a slow-burning debate.

BBC: Cameron's hardest speech

"Ian Rickson's atmospheric, slow-burning and ultimately enthralling production proves far more compelling that I expected, " his three-star review continued.

BBC: Keira Knightley 'wins spurs' with West End stage return