Rotor system of large-scale unit machine
Brass-Plated Mild Steel Round Head Machine Screw
Nickel-Plated Mild Steel Round Head Machine Screw
identical unit or proportional unit of the body
time-rock unit =time-stratigraphic unit
hammer head [= hammer head shark]
head to head configuration
1 000 MW air-cooling unit
1 000 MW class air-cooled unit
1 000 MW extra supercritical unit
1 000 MW generating unit
1 000 MW thermal power unit
1 000 MW ultra supercritical unit