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脉冲式电子围栏
释义
脉冲式电子围栏
Encyclopedia
工学
入侵和紧急报警系统
释
pulse type electronic fence
脉冲式电子围栏
集威慑、阻挡和报警等功能于一体的周界防入侵报警系统。由脉冲主机和前端围栏(合金线)构成,脉冲主机发射脉冲信号通过前端围栏形成回路,当回路发生开路或短路时系统发出报警信号,同时也可通过前端围栏直接给予入侵者安全范围内的电击。
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mural painting of Three Kingdoms,Jin,Southern and Northern dynasties
mural painting of tomb of Han Dynasty in Dahuting
mural painting of tomb of Han Dynasty in Horlinger
mural painting restoration
mural paintings of Liao and Jin Dynasties
mural quadrant
Murals at Sigiriya
murals in Chongfu Temple
Murals in Cui Fen’s Tomb
Murals in Fahai Temple
murals in Guangsheng Temple
Murals in Jiyi Temple
murals in Kaihua Temple
Murals in Li Chongrun's Tomb
Murals in Li Shou’s Tomb
Murals in Li Xianhui's Tomb
Murals in Li Xian’s Tomb (Northern Zhou Dynasty)
Murals in Li Xian’s Tomb (Tang Dynasty)
Murals in Lou Rui’s Tomb
murals in Mogao Grottoes in Dunhuang
Murals in Qingling Mausoleum of Liao Dynasty
Murals in Qinglong Temple
Murals in Shengmu Temple
murals in the Beijing Capital International Airport
murals in the Great Hall of the People in Beijing
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