燃料

• The energy content of fuels is directly related to the mass and not volume .
  与燃料的发热值直接有关的是质量而不是容积。
• The earliest production reactors necessarily used normal uranium as fuel .
  最早为生产用的反应堆，必须使用普通铀作为燃料。
• Liquid fire also burn only when the surface of the liquid is in contact with the air .
  液体燃料也只有在其表面接触空气时才会燃烧。
• A jet plane before takeoff has a certain store of available energy in its fuel .
  喷气式飞机起飞前已在燃料中贮存了一定的可资用能。
• The composition of fossil fuels varies with source, type, and degree of refinement .
  矿物燃料的成分随来源、种类和精选程度而变化。
• Fuel delivery system can be divided into two categories, carburetor and fuel injection .
  燃料供给系统可分为化油器和燃料喷射二大类。
• A liquid fuel which easily evaporates and turns into vapour is called "volatile" .
  易于蒸发和变成气体的液体燃料叫作“挥发性”燃料。
• The chemical and space industries, however, have tamed both fuels in recent years .
  然而，化学和航天工业近年来已把这两种燃料制服了。