variation

• This normal variation in rhythm is known as sinus arrhythmia .
  节律的这种正常变化称为窦性心律失常。
• Three main variations of the ancient greek speech are distinguished .
  古希腊语区分为三个主要的变型。
• He could not comprehend any variations or disloyalties .
  对朋友变心，对朋友不忠实，这些他都感到不理解。
• In more northern plantations the total range of variation is less .
  在北部的试验栽植点则总的变异幅度较小。
• Caged birds should not be subjected to sudden variations of temperature .
  不要使笼中鸟遭受突然的温度变化。
• A graph which shows this variation with time is called a waveform .
  电压或电流随时间而变化的图形称为波形。
• A variation of subirrigation has received increasing attention .
  一种改进了的地下灌溉已经引起了广泛的注意。
• There is a substantial variation in waste strength and waste treatment costs .
  废水浓度和处理费有明显差别。
• The variations of size (diameter) consist of a blowing-up of the images .
  大小（直径）的变化包括图象的扩大。
• Given a constant theme, any amount of variation seemed to him possible .
  有了不变的主题，他似乎可以变化多端。