英和和英

sentinel loop

a waist sash

a screw-driver

the line of flow

an undulating curve

a link in a chain

a loop in a rope

the arch thrust

the string （of a purse, etc.）

processional cross

tend bar

the nesting crane

square rig

load-displacement

a slack rope

slackened rope

loose rope

steering-gear

contour ploughing

the port of discharge

the port of discharge

a tight rope

velcro the belt

reversing-gear

line wound

the meshing of gears

ring-shaped couple rings

a lax rope

a slack rope

a loose rope