tonnage-rent
tonnage-rent n. (采矿)吨位租金 在采矿租约或其他交费中规定的一种租金,即对所采矿石按吨收取的使用费。
tonnage-rent. A rent reserved by a mining lease or similar transaction, consisting of a royalty on every ton of minerals extracted from the mine. [Cases: Mines and Minerals 70. C.J.S. Mines and Minerals §§ 218, 223–224.]