aerophotogrammetric mapping instrument
aerogeophysical instrument
admittance measuring instrument
adjustment of the instrument
adjustable instrument mounting
Adhesive strength testing instrument
adhesion test instrument for the wood coating
acupuncture instrument set
acupuncture and moxibustion instrument and material
acupuncture and moxibustion instrument
acupoint detection and temperature measurement instrument
activity measuring instrument
active electronic type instrument transformer