在机动车辆上非法安装、使用特殊音响警报器或者标志灯具的。
Illegally installing or using special sirens or sign al light equipment in motor vehicles.
合唱是一种强调集体音响效果的声乐艺术，它的和谐程度标志着合唱队的水准。
A chorus is a kind of vocal music art which emphasizes the effects of collective sound, and its harmonious extent marks the level of a chorus.
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