QB/T 1658.1-2002.Commonly used technique terms for reed aerophones. 范围 QB/T 1658.1规定了簧管气鸣乐器通用技术要求、测试...
QB轻工标准
QB轻工标准
QB轻工标准
QB/T 1658.1-2012 簧振动和边棱音气鸣乐器通用技术条件
QB/T 1658.1-2012.General technical requirements of reed and edge-blown aerophones. QB/T 1658.1规定了簧振动...