piezoelectric transformer
压电变压器

• aquaseal
• aqua-solution
• aqueous
• aqueous humour
• arachidic acid solution
• aragonite
• Arago Spot
• Araldite
• arbitrary
• arbitrary incident wave
• arbitrary shape
• arbitrary source
• arbitrary value
• arbor
• arborescent crystal
• arc
• arc-back
• Arc Discharge
• arc-driven supersonic laser
• arch
• arch-shaped
• arcing
• Arc Lamp
• arc light
• arc lighting