developed coalの例文

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1. Willoughby developed coal mines on his estate at Wollaton in the 1560s and 1570s.
2. In the 1880s, the government developed coal wharves along the southern end of the cliffs.
3. They developed coal mines at Fushun.
4. The B & O developed coal piers in Baltimore and at several points on the Great Lakes.
5. The company developed coal mines and transported coal to consumers by its own railways and a fleet of steamships.