minimeter
(1)指针测微器
(2)千分比较仪
(3)空气负压仪

• Bose-Einstein statistics
• boson
• boson fluctuation
• boss
• bottleneck
• bottlenecking
• bottom cover safety stopper
• bottom dish
• bottom view
• Bouguer law
• Bouguer's Law
• boule
• bounce
• bounce-back
• bounce light
• bouncing
• boundary condition
• boundary diffraction
• boundary layer
• boundary scattering
• boundary surface
• boundary wave
• bound-bound laser
• bound-bound transition
• bounded matrix