An excitation device is operable in the open position of the valve member to ultrasonically excite the ultrasonic waveguide.
以及激励装置，所述激励装置在所述阀门构件处于打开位置时可操作以超声地激励所述超声波导器。
The filter member includes a filtering part to filter oil, a second orifice to rectify oil flow, and a check valve to permit oil to flow back when braking operation is released.
该过滤器的成员包括一个过滤器的一部分石油，第二个孔，以纠正油流，单向阀，允许石油回流时，制动操作释放。
In accordance with the preferred embodiment, the seal system includes a radial valve body that is disposed within a circular spring energizer, together which are disposed within a boss member.
根据优选实施例，密封系统包含径向阀体，其设置在圆形弹簧增能器内，径向阀体与弹簧增能器一起设置在突起部件内。
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