例句與造句

1. Then in 1762 Swedish professor Johan Carl Wilcke invented, and in 1775 Alessandro Volta improved, a device ( for which Volta coined the name electrophorus ) that produced a static electric charge, and by 1800 Volta had developed the voltaic pile, a forerunner of the electric battery.
2. It's difficult to find johan carl wilcke in a sentence. 用johan carl wilcke造句挺難的