unascertained [ˌʌnæsə'teɪnd]

例句:

• On this basis, an unascertained model of air quality simulation is established.
  在此基础上, 应建立未确知空气质量模拟模型.
  
• Title to unascertained goods cannot pass to the buyer until the goods have been ascertained.
  在货物未被认出前,它们不能转让给买方.
  
• Structure resistance and effect are affected by lots of unascertained factors in structure reliability analysis.
  在结构可靠性分析中,结构抗力和作用效应受许多未确知因素的影响.