周四，一架民用直升机坠毁在夏威夷珍珠港水域。
A civilian helicopter plunged into the waters of Hawaii's Pearl Harbor on Thursday.
微型无人直升机在军事和民用方面都具有广泛的应用价值，一直以来都是国内外很多机构和组织的研究对象。
Mini unmanned helicopter has comprehensive applications in military and civilian, and for a long time to now, its been as the study object for many institutions and organizations all over the world.
超小型无人直升机在军事和民用方面都具有广泛的应用价值，一直以来都是国内外很多机构和组织的研究对象。
The super-mini scale helicopter is widely used in both military and civil areas and has been a study object for many institutions and organizations all over the world.
超小型无人直升机在军事和民用方面都具有广泛的应用价值，一直以来都是国内外很多机构和组织的研究对象。
The super-mini scale helicopter is widely used in both military and civil areas and has been a study object for many institutions and organizations all over the world.
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