unascertainable

基本解释

• adj.无法查明的；不能确定的

同根派生

英汉例句

• The date of origin of this name is unascertainable.
  这个名称起于何时，已经无从稽考了。
• The cause of dinosaur extinction is still unascertainable today.
  现在恐龙灭绝的原因仍无法确定。
• It consists of speculations on matters as to which definite kownledge has, so far, been unascertainable.
  但它思考的问题却是神学式的,是不确切的知识,是至今为止还没有找到答案的。
• Lastly, fuzzy monitoring index and random monitoring index of displacement are presented for the unascertainable boundary conditions and mechanics parameters.
  针对边界条件、力学参数等的不确定性,研究了模糊监控指标和随机监控指标的应用。