absence

• In the absence of an obstructive lesion of the urinary tract, this illness is self-limited .
  若无尿路梗阻，则本病具有自限性。
• No one speaks of us in our presence as he does of us in our absence .
  没有人会当着我们面说我们，像是他背着我们所说我们的那样。
• You might be wondering about the absence from our list of the born postulate .
  你们可能感到惊讶，在我们的列举中没有玻恩的假设。
• " holiday , vacation " indicate a period of absence from work or duty .
  “holiday，vacation”均指不工作、不上课或不值班的期间。
• The progress of negotiation between the two sides has slowed down owing to their absence .
  双方的谈判因为他们的缺席而迟缓下来。
• Absence of one chromosome of a pair is called monosomy for that chromosome .
  一对染色体中缺少了一条染色体就称为该染色体的单体。
• The vice chairman is the chief executive officer in the absence of the chairman .
  副董事长在董事长不在时代理最高行政负责人职务。
• Of course, pure market systems are notable for their absence in the real world .
  当然，在现实世界中，纯粹市场体系显然是不存在的。
• The absence of the c=n link was noted in the staring thiazanes and thiazolidines .
  未见到在原来的四氢噻嗪和四氢噻唑中CN键的存在。
• The absence of his accustomed work seemed to leave something out of his life .
  一个人失掉一向做惯的工作，仿佛生命中缺少了什么似的。