The nuclear forensic analysis has already become a special, up-to-date sphere of learning.

核取证分析技术已形成了一门特殊的，新的学术研究领域。

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Since it has been put forward, it has given rise to much controversy in the sphere of learning.

自其被提出以来，在学术界引起了极大的争论。

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Meanwhile. the writer comments in brief on current views of the legal nature of signing antidated B/L in sphere of learning.

同时，对学术界就这一问题的几种观点进行了简单的分析。

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