tracer
(1)描图器
(2)描图员
(3)云踪物
(4)曳光剂
(5)曳光器
(6)曳光弹
(7)故障检导器

• baseband equalization
• Baseband Frequency Characteristics Evaluation Equipment
• baseband response function
• baseband signal
• baseboard
• base circle
• base length
• base lighting
• baseline
• base line
• baseline adjustment
• baseline correction
• baseline drift
• baseline fluctuation
• baseline method
• baseline shift
• baseline stability
• base material
• base peak
• base pitch tester
• base plane
• base plate
• base point
• base region
• base surface finish