故选B。] 答案B 解析 细节理解题。由文章第二段第二句“Most are also equipped with automatic fire alarm systems consisting of heat detectors,smoke detectors and sprinklers”可知,自动火灾警报系统包括热量探测器、烟雾探测器和喷水灭火装置,和B项意思一致,故选B项。
At the core of a fire alarm system are the detection devices, from sophisticated intelligent smoke detectors to simple manually operated break glass units, there are a wide array of different types, but we can divide them into groups including: –Heat detectors –Smoke detectors –Carbon Monoxide...
What are Foehn winds? What is the activity level of americium-241 in smoke detectors? What is the Fujita scale? What is roasting in metallurgy? What kind of wind shear is the most hazardous? What is a small whirlwind called? What steel is needed to strike fire steel?
Motion.Motion detectors can sense physical movement in a defined space (the field of detection) and can be used to control lights, cameras, parking gates, water faucets, security systems, automatic door openers and numerous other systems. The sensors typically send out some type of energy -- s...
RE+ 2023 September 11-14, Las Vegas, Nevada Mark your calendars for September 11 to 14… Info What Are Resistance Temperature Detectors (RTDs)? Table of Contents Intro What is an RTD? How does an RTD work? Types of… View All Posts Hit enter to search or ESC to close...
Those temperatures are too low for spark detectors to sense since visible sparks and embers are not detectable at temperatures below 700[degrees]C. Infrared heat detectors boost productivity Housed in the triple detector array, the LALS detector option is ideal for characterizing natural and synthetic...
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aGuestrooms smoke or heat detectors are not hard wired 客房不是坚硬的架线的烟或热探测器[translate] acell trad 细胞trad[translate] aRegulating Valves 正在翻译,请等待...[translate] ai was shot dead by a glimpse of your ass 我由您的驴子瞥见射击死[translate] ...
†Google, Google Nest, Google Assistant, and other related marks are trademarks of Google LLC. Share Article Written by John Carlsen John is a technology journalist specializing in smart home devices, security cameras, and home security systems. He has over a decade of experience researching, te...
Explosives are devices intended to change to an environment in the process of construction, for example, or cause damage and loss of life through a sudden expansion of gases with violence, heat, and noise due to a reaction that may be chemical or nuclear. Explosives are divided into high ...