improver [ɪm'pru:və]

例句:

• Aim To synthesize new type of octane number improver for gasoline, methoxyisobutyrate.
  目的合成一种新型汽油辛烷值改进剂─甲氧基异丁酸烷基酯.
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• Cetane improver . Makes the engine run better at higher compression settings.
  碳氢化合物的改进物. 使引擎在高压缩比时运转较为顺畅.
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• Cyclohexyl nitrate is an effective cetane number improver for diesel oil.
  硝酸环己酯是一种有效的柴油十六烷值改进剂.
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• A paving asphalt penetration ratio improver was introduced.
  介绍了一种提高道路沥青针入度比的改进剂.
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• Some improver play important roles in enhancing the baking quality of the wheat flour.
  添加一定的添加剂可改善小麦粉的烘焙品质.
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