Pipettes and it's types. Pipettes. These are used to transfer a known volume of liquid from one container to another. They are designed either to contain (TC) a specific volume of liquid or to deliver (TD) a specified volume.
1 Frock (especially in the phrase short frock) is also a child's dress or light overdress. 2  A frock is a dense knitted overgarment worn by sailors and fishermen, as guernsey frock, jersey frock (now usually simply guernsey and jersey). 3  The name oil frock has been used for a type of sailor's oilskin.
Fret - Variations. 1  Fan frets (also fanned frets, slanted frets), or multi-scale: while frets are generally perpendicular to the instrument's neck centerline and parallel to each other, on a fanned fretboard, the frets are angled (spread like a fan) with only one center fret perpendicular to the neckâs centerline.