| 单词 | ratemeter |
| 释义 | > as lemmasratemeter ratemeter n. an instrument which measures the rate at which a particular event happens; spec. one which displays or records the rate of occurrence of pulses in an electronic counter, used esp. to measure the intensity of ionizing radiation. ΘΚΠ the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > instrument for counting or recording counter1924 point-counter1925 tube counter1930 radiation counter1934 ratemeter1941 1935 Brit. Jrnl. Radiol. 8 467 (title) A portable direct-reading X-ray dosage-rate meter.] 1941 Jrnl. Physical Chem. 45 641 The mechanical counter is more accurate for weak activities than the rate meter, which is observed visually. 1962 G. A. T. Burdett Automatic Control Handbk. ix. 33 The electronic system usually associated with nucleonic switches and gauges incorporating Geiger counters is known as a ‘ratemeter’. This unit provides an indication of the rate at which the counter is detecting incident radiation. 1985 C. S. Ward Anaesthetic Equipm. (ed. 2) xi. 238/2 The ventilation rate meter indicates the frequency in cycles per minute of the ventilator. 2001 K. Johnson Physics for You (rev. National Curriculum ed.) xxxix. 349 A radium source is placed near a G–M tube connected to a ratemeter and loudspeaker. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。