周期

• The periods will then decrease from the beginning of the train to the end .
  周期也将从波列的开头到尾部逐渐变短。
• The major semiaxis a and p of the relative orbital motion are known .
  我们知道其相对轨道运动的主要半长轴a和周期p。
• The harmonic oscillator is an exceptionally important example of periodic motion .
  谐振子在周期运动中是特别重要的。
• These quantities are then dated according to the period to which they refer .
  这些量是以它们提供的周期来计算时间的。
• The gibberellins interact also with photoperiod in the determination of flowering .
  赤霉素也和决定开花的光周期有关。
• It always is an inseparable part of the research and development cycle .
  它总是研究和开发周期中的一个不可缺少的部分。
• The third "l" shows that the series is leading all turns of the business cycle .
  第三个安母“L”表明这个数列领先于周期的高峰。
• The motion is periodic, which means it occurs identically over and over again .
  这个运动是周期的，意即运动以同样的形式重复出现。
• Now consider the case of a half-cycle shift a between the identical functions .
  现在考察一下在两个相同函数之间移12周期A的情况。
• Role and status is more useful when related to the age and life-cycle concepts .
  声望和地位与年龄生命周期概念一并考虑时是很有用的。