And the arrow signals that come from the bearings of the yellow housing and the black housing, those arrow signals are fed back to the automatic pilot and so the plane will stay on course.
这些黄色框和黑色框的装置，的箭头标志，这些箭头信号反馈回，自动导航装置，所以飞机可以，稳定航线。
The main shaft bearings of aircraft engine are key parts of plane, its reliability and life affect directly on the reliability and life of engine and even whole plane.
航空发动机主轴轴承是飞机关键部件的关键零件，其可靠性和寿命直接关系着发动机乃至飞机的可靠性和寿命。
The main shaft bearings of aircraft engine are key parts of plane, its reliability and life affect directly on the reliability and life of engine and even whole plane.
航空发动机主轴轴承是飞机关键部件的关键零件，其可靠性和寿命直接关系着发动机乃至飞机的可靠性和寿命。
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