The cause of severe vibration is the formation of a self-excited vibrating system by the joint of the gap jet and turbulent flow downstream the gate.
2
在菲尼克斯，有四个的亮度界面上，可以通过简单的方式闸门变频压低人民币银侧按钮。
On the Fenix, there are four brightness levels on the UI, with a variable-frequency strobe mode accessible by simply holding down the silver side button.
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