他对这个理论的热情是显而易见的，直到我请他告诉我他是如何发明鸥翼的。
His passion for the theory was clear, until I asked him to tell me how he had invented the gull wings.
先前技术也将决定此项发明中所声称的新措施其实显而易见——因此配不上是一项专利。
Prior art is also the basis for determining whether some new step claimed in the invention is obvious-and therefore not worthy of a patent.
一项可专利的发明不仅内容要新奇，也要具备实用和非显而易见性。
To be eligible for a patent, an invention must not just be novel, but also useful and non-obvious.
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