YWG Swiftlet Equipments Technology (002070067-K) 燕王馆金丝燕科技器材
经营成功燕屋，创造无限财富。
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Monday, 28 June 2010
引导声中程音系统
集中引导鸟声发射到较远的地方，减少附近的嘈音干扰。
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