effective diameter of bolt or high-strength bolt

a drop

a drop in the bucket

a drop quiz

abnormaL drop

Abnormal flower and fruit drop

Abrupt temperature drop

acceleration pressure drop

accessible voltage drop

acid drop

acrid bitter drop therapy

active anti-rhinitis nasal drop

actual enthalpy drop

actual net heat drop

adaptive packet drop

Add & Drop Multiplexer ADM

add and drop multiplexer

add and drop multiplexer ADM

add drop multiplexer ADM

additional pressure drop