然而，现有的燃料数据较少，利用实验方法测定燃料性质存在困难。

However, the experimental data is very limited. Moreover, it is hard to measure the properties of fuel candidates.

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另一项要考虑的服务就是My Mile Marker，它可让您通过其网站输入燃料数据，或通过一个特殊的移动设备，或者是你猜对了的Twitter。

Another service to consider is My Mile Marker, which lets you enter fuel data via its web site, or right from the pump through a special mobile site, or you guessed it, Twitter.

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每年接近200万人过早死于因使用固体燃料产生的室内空气污染而导致的疾病(2004年数据)。

Nearly 2 million people a year die prematurely from illness attributable to indoor air pollution due to solid fuel use (2004 data).

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