detection interval

QT interval detection

first in first out

first in first out FIFO

first-come-first-served

multi-story masonry building with frame-shear walls on first or first and second floors

Zhuan first

120 first aid

1NF first normal form

a first aid course

a first class discipline

A level of first order

a thousand-li journey begins with the first step

absolute first curvature

Act Governing Replacement of Any Vacant Seat of the First Term National Assembly

action of the first impression

adaptive depth first search

adult of the first form

age at first calving