两层

• Two - layer model integral method for turbulent boundary layers
  湍流边界层的两层模型积分法
• Prompt . xml sets the following two - tier security model
  Prompt . xml设置以下两层的安全模型：
• Locked . xml sets the following two - tier security model
  Locked . xml设置以下两层的安全模型：
• Julien ： we only walked up two small flights of stairs
  朱利安：我们只爬了两层楼梯而已耶。
• Eyes are composed of two layers of hemisphere
  眼睛由两层半球组成。
• 25kgs net in pp bag with inner of polyethylene bags
  净重25公斤，纸塑复合袋，内衬两层pe袋。
• Two floors up you ' ve got an air duct
  往上两层，你会到达一个通风管
• Introduction : the two villas , a four to see how you layout
  两层的别墅，一家四口看你怎么布置啦