Energy crisis compels fuel conservation.

能源危机使人们必须节约燃料。

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It possesses the characteristics of fast speed heating up, homogeneous heating, fuel conservation and novel structure.

它具有火焰不直接冲刷加热工件、升温速度快、加热温度均匀、节约燃料、结构新颖等特点。

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But while higher is better from a fuel conservation perspective, there is an upper limit on how high it is safe to orbit humans for long periods.

越高耗费的燃料越少，而载人飞船能够长时间安全飞行的轨道高度就有上限。

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Airlines can improve their fuel conservation by using single engine taxiing and electric-powered vehicles on the ground.

BBC: How eco is your airline?

Wald says in the short term the most lives will be saved in Iraq and Afghanistan by aggressive fuel conservation.

FORBES: Logistics

And because of the slight rise in fuel prices (which should be more than compensated for by the savings from eliminating the subsidy), a small amount of fuel conservation may result.

FORBES: Washington's Foolish Fuel Policy