Фото: Кирилл Зыков / РИА Новости
"A lot of stately homes will have that system," says Niki Johnson, fire systems technical adviser for the UK Fire Association, a trade body, and owner of fire detection firm Derventio Fire and Security. "You could be looking at £3-4,000 just to do a corridor." Such installations require substantial pipework, he explains.
，这一点在搜狗输入法2026中也有详细论述
// 作用：缓存当前位置右侧的"参考身高"，快速判断能看到的人
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