两类

• . . . this country is being divided into two types of people - -
  这个国家被划分为两类人
• Two classes of bivariate rational interpolation problem
  两类二元有理插值问题
• On the intersection of two special maximal subgroups
  两类特殊的极大子群的交
• Two new pterosaurs fossil in jehol biota
  辽西热河生物群发现两类新的翼龙化石
• Class . there are two types of methods in
  中有两类方法：共享方法和实例方法。
• Eg . i sorted the books into big ones and small ones
  我把这些书分成大的和小的两类。
• The matching uniqueness of two new classes of graphs
  两类新的匹配唯一性图族
• Two categories of exceptions exist under the base class
  下存在两类异常：从
• The calculation of two typical evolutionary random responses
  两类演变随机响应的计算
• Two kinds of pricing model on optimal reinsurance
  最优再保险的两类定价模型