line string up

tying-up string

make up of string

make-up of string

string joining-up normalization

pick-up up hay baler

boot-up speeding up

half built up crank shaft [= semi-built-up crank shaft

Hold Up And Stop Up Rotating

on the up-and-up

put up or shut up

sequence of train breaking up and making up

up-and-up

up-supply and up-discharge

up-supply and up-exhaust

WARM UP; WARMING UP

1000 kV insulator string

2-D string diagram

500kV rod composite string insulator