BORESCOPE, An electro-optical device for looking at internal parts of an engine through holes in the engine. (borescope ports)
孔探仪， 用于通过发动机内的孔（孔探口）观察发动机内部件的电光设备。
BORESCOPE, An electro-optical device for looking at internal parts of an engine through holes in the engine. (borescope ports)
孔探仪， 用于通过发动机内的孔（孔探口）观察发动机内部件的电光设备。
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