這位法國傳教士， Père d'Entrecolles， 是個工業間諜

François Xavier d'Entrecolles (1664 in Lyon – 1741 in Beijing; Chinese name: 殷弘緒, Yin Hongxu) was a French Jesuit priest, who learned the Chinese technique of manufacturing porcelain through his investigations in China at Jingdezhen with the help of Chinese Catholic converts between 1712 and 1722 。。。

https://en.wikipedia.org/wiki/Fran%C3%A7ois_Xavier_d%27Entrecolles

當然，現在我們提高了革命警惕性