来源

• Historical experience would serve as a most important source of information .
  历史的经验将是一个重要的信息来源。
• Review of the various uranium areas shows a range in provenance .
  概括各个不同的含铀区，即可得出一个来源的范围。
• A combination of sources of uranium may be the most realistic postulate .
  各种铀来源的综合考虑可能是最现实的假说。
• Some of the noise comes from man-made sources such as electrified trains .
  有些噪音是电气化列车这样人为来源产生的。
• It offers an alternative to the dwindling supplies of natural gas .
  这一过程为正在减少中的天然气供应提供了另外的来源。
• The origin of most of our domestic animals will probably forever remain vague .
  大部分家畜的来源，也许会永远暧昧不明。
• Animals became a valuable source of mechanical as well as nutritional energy .
  动物成为一种有价值的机械和营养能的来源。
• Power, heat, light, water and transportation are the lifeblood of cities .
  电力，暖气，灯光，饮水及运输是城市的活力来源。
• Mr. healey, very put out, denied saying any such thing and asked her source .
  希利先生暴跳如雷，否认说过此话，并追求来源。
• Many of these adulatory characterizations were attributed to unnamed sources .
  在这些献媚取宠的特写当中，很多材料来源不清。