一种具有天线指向搜寻控制装置的无线信号接收器，包括一底座、一可旋动天线组件、一旋转承载机构以及一驱动马达。
Disclosed is a wireless signal receiver with an antenna direction search and control device, which comprises a base, a rotary antenna component, a rotary bearing mechanism and a driving motor.
这些塔，或称“叶片”，围绕着一个三角形中心轴旋转，中心轴承载着电梯和机械设备。
These towers, or "blades," pinwheel about a triangular central shaft that holds elevators and mechanical equipment.
一般适用于承受巨大倾覆力矩并作相对旋转运动的机械设备，是一种具有高效、高承载能力的组合轴承。
Generally applies to capsize under tremendous torque and rotational movement relative to the mechanical equipment, is a kind of efficient, high load-bearing capacity bearings.
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