anvil cell
(1)测量头光面元件
(2)测量头传感器

• buncher
• bunching
• bunching of photon
• bunching of picture element
• bundle
• bundle of rays
• bunker
• Bunsen photometer
• Bunsen-roscoe law
• Bunsen screen
• buoyance
• Burch reflecting microscope
• burden
• Burger's vector
• burial layer
• buried heterostructure DFB laser
• buried surface
• burn
• burner 1
• burning glass
• burnishing
• burnishing machine
• burn pattern
• burr
• Burrus LED