1) poll
[英][pəʊl] [美][pol]
挂号通讯
2) DTMF signal data communication
DTMF信号通讯
3) signal
[英]['sɪɡnəl] [美]['sɪgnḷ]
讯号;交通灯
4) to talk by signs
用符号通讯
5) Mobile phone's interference
移动通讯信号
6) traffic sound signal
交通信号声讯器
1.
As an addition to the vision signal, this paper introduces a traffic sound signal based on the fuzzy technology which is designed and developed to give out speech and sound prompt according to the conditions of main road intersection, the device can automatically adjust prompt volume along with environment noise volume, thus reducing effectively the noise pollution.
设计和研制了一种基于模糊技术的交通信号声讯器, 它能够根据交通路口的通行状况发出语音和声讯提示，且能随环境噪声的强度自动调节提示音量的大小，可有效减少噪声污染。
补充资料：单挂号
1.信件和印刷品付邮时由邮局登记编号，给收据，叫挂号。只挂号不要回执的，通称单挂号。如有差失，可凭收据编号追寻查找。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条