... fuel-to-air ratio 燃料与空气比 fuel-to-weight ratio 燃料与结构重量比 fuel transfer pump 燃油输送泵 ...
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fuel-to-airframe weight ratio 燃料与结构重量比
fuel to airframe weight ratio 燃料与结构重量比
fuel-battery power-to-weight ratio 燃料电池组功率
fuel-cell-system energy-to-weight ratio 燃料电池系统能量
fuel-to-weight ratio
fuel-to-weight比率
以上为机器翻译结果，长、整句建议使用 人工翻译 。
But until recently they have suffered from a low power-to-weight ratio, unlike the other sort of room-temperature fuel cell, the temperamental and costly proton-exchange-membrane device, which several firms hope soon to use in motor cars.
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