英和和英

snap division

an exponential series

rotary dial

split logs

a branch line

a single track―a double track

disconnection of the wire parts

an oscillatory circuit

the string section

the strings section

to double-track a line―duplicate a line

parallel lines

parallel lines

lineal descendant

undo the wiring of

linear amplifier

a branch road

a gantry spanning the tracks

split apart

a parting line

an extension line

an insulated wire

a single-track railroad

The two lines intersect （each other）―cross each other―run across each other.

conjugal separation

sentinel loop

do the splits

an extension-ladder

an extension-ladder

a convergent pencil