group variation造句

• It shows that the increasing of microwave power can result in increasing of deposition rate , but decreasing of f / c ratios and abundance of cf and cf3 groups in cl - c : f films , and keeping that of cf2 group variation around a constant
  在560w以上的高微波功率下沉积的薄膜是主要由cf _ 2基团和c = c结构组成的- c : f薄膜。
• This index then is decided to contain the fluctuation of both income and consumption instead of focusing only on one factor , and it should be measured by the squared resid of the time serial simulation of variables , rather than commonly used group variations or other indirect indices , which are quite different from formal researches . besides , the accuracy of the ecm model will be greatly underlined
  在计量方法上,笔者分析了各种方法的利弊,最终放弃了前人常用的组间方差法、间接变量法和主观报告法,而使用了更切合经济含义且更具相关性、更客观的残差平方(对变量进行时间序列模拟后得到,稍后会作取对处理) 。