Aiming at the current status that helicopter uses single torpedo to attack submarine, a method of two torpedoes salvo for helicopter hovering attack is presented.
针对直升机投雷一般采用单雷射击的现状，提出了采用直升机悬停双雷齐射的方法。
Aiming at the current situation and development trend of residential district intelligent system in China, the application of new generation communication was analyzed.
针对我国居住区智能化系统的现状及其发展趋势，分析了新一代通信在居住小区中的应用。
Aiming at the current situation of lighting system's low energy saving efficiency and high energy consumption, the intelligent lighting system would improve this condition.
目前的建筑照明系统节能效率较低，而智能建筑照明系统的应用有利于改善这种状况。
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