The little green whale formac can't copy Chinese documents because of copyright problems. Because of copyright issues, articles cannot be pasted and copied directly. Xiaoqing Whale SCI document reader is the first software specialized in reading SCI documents in China, which is designed through four scientific research scenarios. In the process of writing a paper, the author will inevitably refer to some documents, some of which are wonderful, so the author wants to copy them, but at the same time he finds that the documents are protected, and if he wants to unlock them, he must pay the corresponding fees.