但先前技术有时难以捉摸。
(在美国当前的系统下,第三方仅可以提交先前技术,不能发表评论。)
(In America, third parties are allowed to submit only prior art without comments under the current system.)
当然了,如果内容过于宽泛,可能无法获得批准,因为毕竟要与先前技术相比较。
Of course, if you write too broadly you may invalidate your claim, because it will read on the prior art.
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