顶部带两个调节器，可实现俯仰/偏摆调节
垂直调节设计，适用于紧凑空间，调节时不遮挡光束
紧凑的挠性结构设计，非常适合有限空间内安装
体积较传统更小，结构更紧凑，适合有限空间内安装
调节器带锁紧，可提供长期稳定效果
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