| 释义 |
Hoppus|ˈhɒpəs|
Also hoppus.
The name of Edward Hoppus, 18th-century English surveyor, used attrib. and in the possessive to designate a method of measuring the cubic content of round timber used in the British Commonwealth, and tabulated in his Practical Measuring now made Easy (1736) (known in later editions as Hoppus's Tables and Hoppus's Measurer); it involves multiplying the length in feet by the square of the quarter-girth in inches and dividing the result by 144; Hoppus foot, a recent name for the ‘cubic foot’ as arrived at by the Hoppus method, approximately equal to 1·27 true cubic feet.
[1820R. Monteath Forester's Guide xxvi. 173 It will contain 2 solid inches and one-third of an inch, according to the measurement of Hoppus.] 1894A. D. Webster Pract. Forestry (ed. 2) xxv. 175 Timber-measuring is rather a vexed question, some following what is known as Hoppus's system, and others advocating that of Horton. 1924A. C. Drummie Pract. Forestry xxvii. 244 The standard usually adopted is the quarter girth Hoppus measure system, with the customary allowance for bark. 1941S. E. Wilson Decimal Hoppus Tables 6 When the Hoppus system is employed to measure cylindrical bodies the solid foot amounts to 4/π or 1·273 cubic feet... To call the unit.. a cubic foot is accordingly inaccurate and misleading... To avoid confusion we call the ‘solid foot’ of this system a ‘Hoppus Foot’, defining it as the unit of solid contents according to the Hoppus system of measuring round timber. 1947H. L. Edlin Forestry & Woodland Life xx. 144 The unit generally used in Britain for measuring round logs, trees, and plantations, is the customary cubic foot, or Hoppus foot. 1951R. H. Hordern Woodworking Ind. Managem. viii. 123 The 144 divisor used in the Hoppus System will show approximately 27 per cent less cubic content than the tree actually measures. 1970Timber Trades Jrnl. 14 Mar. 53/3 Average volume of the trees was 25·4 Hoppus ft, and the price reached was 3s 5½d per Hoppus ft. 1971Daily Tel. 7 Jan. 12/5 The hoppus foot, a traditional measure for timber,..will be replaced next month by the cubic metre and metric tonne. |