Commonly, the toughest technical problems are driven by non-functional requirements.
通常，最糟的技术问题由非功能需求导致。
Britain has made useful contributions to non-proliferation over the years, using its know-how to solve fraught technical and scientific problems.
近年来，英国已经对防止核扩散作出很多有成效的努力。并且利用它的专业知识解决了很多技术上和科学上的问题。
Non-surveying and mapping professional students face knowledge narrow, technical obsolescence, operational capacity less problems.
非测绘专业的学生面临知识面窄，技术陈旧，操作能力较差的问题。
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