equivalent power detector
等效光强探测器

• water glass
• water immersion
• water-immersion system
• water level
• water level ga[u]ge
• waterline
• water-of-ayr stone
• waterproof
• water tight
• water-vapor laser
• water-vapor plasma
• water vapo[u]r
• water vapo[u]r absorption
• Watson's lemma
• watt
• wattage
• watt-hour
• watt-hour meter
• wattmeter
• watt-sec
• wave
• wave aberration
• wave-amplitude
• wave band
• wavebeam guide