评估知识产权价值的技术，包括成本法和研发总支出。
The techniques for assessing value of intellectual property include a cost approach and the aggregate expenditure to develop it.
杜加说，尽管各国占世界研发总支出的比例有所变化，“但美国不必为此惊慌失措。”
Despite the shifting R&D landscape, 'there's no need for the U. S. to panic, ' said Mr. Duga. Instead, he said, 'the U.
中国的研发支出占全球研发总支出的比例也从2002年的5.0%上升至2010年的12.3%，仅仅排在美国的后面。
Its share of the world's total R&D expenditure grew to 12.3% in 2010 from 5.0% in 2002, placing it second only to the U. S.
不过这个数据有问题，因为美国研发支出的资金来源很多，比如2004年，研发总支出为$2880亿，而财政支出不过$860亿。
The trouble with this statistic is that America has lots of sources of R&D spending: federal money accounted for only $86 billion of the $288 billion that it spent on R&D in 2004.
不过这个数据有问题，因为美国研发支出的资金来源很多，比如2004年，研发总支出为$2880亿，而财政支出不过$860亿。
The trouble with this statistic is that America has lots of sources of R&D spending: federal money accounted for only $86 billion of the $288 billion that it spent on R&D in 2004.
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