Original sentence: If the accounts can be taken as factual, Zheng He's treasure ships were mammoth ships with nine masts, four decks, and were capable of accommodating more than 500 passengers, as well as a massive amount of cargo.The purported dimensions of these ships (137 m (450 ft) long and 55 m (180 ft) wide) are at least twice as long as the largest European ships of the fifteenth century and 40 per cent longer and 65 per cent wider than the largest wooden ships known to have been built at any time anywhere else
Edited sentence: However, according to most recent research by the professor of marine engineering Xin Yuanou, the actual length of the ships has been estimated at 59 m, which has been accepted by modern scholarship as more realistic.However, according to most recent research by the professor of marine engineering at Shanghai Jiaotong University, Xin Yuanou, the actual length of the ships has been estimated at 59 m, which has been accepted by modern scholarship as more realistic.The Ming shi describes Zheng He's treasure ships were mammoth ships with nine masts, four decks, and were capable of accommodating more than 500 passengers, as well as a massive amount of cargo.The main source for the dimensions of the ships is the Ming shi, written between 1644 and 1735, more than two hundred years after the events.The purported dimensions of these ships, given in the Ming shi, written more than two hundred years after the events, are 137 m (450 ft) long and 55 m (180 ft) wide