Easy to install on any bike, you can adjust its height and Angle for optimal screen viewing.
易于安装在任何自行车，你可以调整它的高度和角度以便在最佳的屏幕上观看。
The optimal distance between painting and sketching objects, usually between height and width of the object 3 times to 5 times, good habits help painting skill enhancement.
画者与写生对象之间的最佳距离，通常是对象高度或宽度的3倍到5倍之间，良好的习惯有助于绘画技能的提高。
Beacon fuze works in the way of wireless data communication, bases on the fuze technology of radio instruction, in order to realize the control of the optimal explosion height.
信标引信以无线电指令引信技术为基础，采用无线数据通信的工作方式，实现最佳起爆高度控制。
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