黑箱

Traditional form:

黑箱

Pinyin (reading):

hēixiāng

Definitions:

• black box
• flight recorder
• opaque system (computing)

Characters:

• 黑 - black; dark; evil, sinister
• 箱 - box, case; chest, trunk

Traditional characters:

• 黑 - black; dark; evil, sinister
• 箱 - box, case; chest, trunk