Enforcement Rules of the Patent Act Article 3

Where the Chinese translation of technical terminology has been made by the National Academy for Educational Research, such official translation shall prevail. However, in the absence of such official translation or as it deems necessary, the Specific Patent Agency may request the applicant to annotate the Chinese terminology with its original foreign version.The document(s) for filing a patent application or other proceedings shall be in Chinese. In case any document(s) of proof is written in a foreign language, the Specific Patent Agency may, as it deems necessary, request the applicant to submit a full-text Chinese translation or a Chinese translation of an excerpt thereof.
中文原文 專利法施行細則第3條
技術用語之譯名經國家教育研究院編譯者,應以該譯名為原則;未經該院編譯或專利專責機關認有必要時,得通知申請人附註外文原名。
申請專利及辦理有關專利事項之文件,應用中文;證明文件為外文者,專利專責機關認有必要時,得通知申請人檢附中文譯本或節譯本。

English translation for reference only; the Chinese text prevails. Not legal advice.