| 释义 |
Examples:diluted earnings per share—number of revolutions per minute—pay-per-click advertising—Mach (aeronautics), unit of speed based on speed of sound = 1 Mach = 1224 km per hr—system of quotas for farm output per household—Herz (Hz) or cycles per second, unit of frequency—Mach number, multiples of speed of sound used as unit in aeronautics, with 1 Mach = 1224 km per hr—tex, unit of fiber density used in textile industry defined as mass in grams per 1000 m of fiber (loan)—practice of allowing only one child per family—be 90 per cent sure [idiom.]— |