"These days we use electric kilns. Though they are safer, they do not leave the same traces that prehistoric pottery has from being fired outdoors with uneven exposure to the heat." Cheng feels very strongly about this.
「我們現在使用電窯，雖然安全，但是沒有史前陶因戶外坑燒、受熱不均而產生的烙痕，」鄭永國對此也深有感觸。