Zìdiǎn zhèngwén qián jièshào le tā shǐyòng de biāoyīnfǎ.
Before the main text, the dictionary explains the phonetic transcription system it uses.
Tips
usage
标音 (mark sound) + 法 (method) — a generic label for any phonetic-notation scheme. Examples include 汉语拼音 (Hanyu Pinyin), 注音符号 (Bopomofo), and IPA (国际音标).