Research on legal system of patent transaction 并列题名:Research on legal system of patent transaction Research on legal system of punishment for discredit Research on the legal system of reorganization Research on the legal system of cultivated land protection Research on the legal system of public interest litigation 并列题名:Research on the legal system of reorganization research on Ulysses' Chinese translation Research on the legal system of environment and resources allocation 并列题名:Research on the legal system of public interest litigation