molecular ratio

常见例句

双语例句

• Molecular ratio is calculated by excess amount of ALF3 in sample measurement in-diectly?
  通过间接测定试样中过剩ALF_3量来计算出分子比。
• The yield reached 98.68% when the molecular ratio of sulfuric acid to oxime was 1.15 and the temperature was 80℃.
  结果发现，该反应能够在较低的温度下进行。在80℃、酸肟摩尔比为1.15的条件下，己内酰胺收率达到了98.68%。
• Influence of methanol content in formaldehyde used as raw material for preparing low-formaldehyde(low molecular ratio) UF resin was studied.
  研究了原料甲醛中甲醇含量对低醛化（低摩尔比）脲醛树脂性能的影响。

权威例句

• The most likely alternatives, butter and pig fat, were ruled out using a technique called isotope-ratio mass spectrometry, which measures the molecular weights of the chemicals in a sample.
  ECONOMIST: The Romans, too, had sophisticated cosmetics
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