Altogether these collections contain more than 60 million characters. But there are still some limitations: For instance, one can only check 30 documents per search, and in viewing documents in the Twenty-five Books of History, one cannot scroll through a document from start to finish.
但仍有若干限制，包括每次檢索不得超過三十筆，二十五史部份不能從頭至尾瀏覽全文。