In a market, a pivot point, it's associated support and resistance levels, are often turning points for the direction of price movement.
市场上，与支撑位和阻力位密切相关的枢轴点通常是价格运行方向的转折点。
Thus, in a preferred class of embodiments, the collar has a pivot for the chin support pieces relative to the collar body, and an other pivot for the chin piece relative to the chin support pieces.
因而，在优选类别的实施例中，颈圈具有相对于圈体用于下颚支撑件的枢轴，和相对于下颚支撑件用于下颚部的另外的枢轴。
This can be achieved, by example, by bearings that are moveable on suitable guides, or by mounting the support on a plurality of pivot arms of unequal lengths.
这例如可以通过可在合适的导轨上移动的轴承或者通过在多个非等长的摇臂上安装支承件来实现。
For me a pivot, I may support the terrestrial globe;
给我一个支点，我可以撑起地球仪；
For me a pivot, I may support the terrestrial globe;
给我一个支点，我可以撑起地球仪；
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