1N-COUNT (飞机的)黑匣子,飞行数据记录仪 A black box is an electronic device in an aircraft which records information about its flights. Black boxes are often used to provide evidence about accidents. (飞机的)黑匣子,飞行数据记录仪
2N-COUNT [usually singular]黑箱(知道结果但不知道其工作原理的系统或仪器) You can refer to a system or device as a black box when you know that it produces a particular result but you have no understanding of how it works. 黑箱(知道结果但不知道其工作原理的系统或仪器)
They were part of the black box associated with high-flyer management development.