Experts do not have certificates and refer to those who have made more achievements or are famous in their profession; masters are the title of famous people. Some industries have certificates (masters of craftsmanship in engineering and art are with certificate). However, these titles have now become derogatory.
Experts refer to people who have specialized research or expertise in academics, skills, etc. Liang Chenyue of the Southern Dynasty wrote in "Comments to the Provincial List of Works": "If you are not knowledgeable in your art, you should learn from the experts." Xue Fucheng of the Qing Dynasty said in "Ying Zhao Chen Yanshu": "This is not the case in China. All craftsmanship is regarded as despicable, and smart people If you don't pay attention to it, there are so few experts. "Ke Yan, "The Captain": "This is an international port, and we are all dealing with experts. You can tell how much you are worth just by opening your mouth."
2) Refers to a certain academic family. "Manuscripts of the History of the Qing Dynasty: Preface to the Biographies of Scholars": "For example, Kong Guangsen said in Gongyang's "Spring and Autumn", Zhang Huiyan said in Meng Yu's "Yi"? They are all experts who study alone."
Experts refer to those who have the necessary skills. Professionals who have professional skills and rely on such skills for a living.
A master refers to a scholar, expert, artist, chess player, etc. who has profound attainments and a high reputation. Example: chess master.
One of the ten names of Buddha. That is the master of heaven and man. Buddhists call Buddha, which is also used as an honorific title for monks. All Shandong masters have consulted "Shangshu" to teach. ——"Historical Records: Biography of Fu Sheng" [1]
In modern society, it is also an informal term used to address certain people with professional expertise when joking.