replaceable-gas laser
可置换气体激光器

• semi-sphere
• semi-stable state
• semi-transmitting mirror
• semitransparent
• semitransparent mirror splitter
• semitransparent thin film
• semivitreous
• semi wide-angle lens
• senarmontite
• Senarmont polarimeter
• Senarmont prism
• sender
• sensation noise
• sense finder
• sensibility
• sensibility reciprocal
• sensibilization
• sensing
• sensing circuit
• sensing element
• sensing technology
• sensing unit
• sensitive area
• sensitive colo(u)r plate
• sensitive film