| 单词 | bell-telegraph |
| 释义 | > as lemmasbell-telegraph bell-telegraph n. an instrument in which two bells are used to transmit a message, one indicating (by its tone) the movement of the needle to the right, the other, to the left (disused). ΘΚΠ society > communication > indication > signalling > visual signalling > semaphore > [noun] > apparatus telegraph1793 tellograph1796 semaphore1815 semaphore signal1826 shutter-telegraph1859 bell-telegrapha1877 a1877 E. H. Knight Pract. Dict. Mech. I. Bell-telegraph,..invented by Sir Charles Bright. < 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。