Difference between Pull Through and Boyau

PULL THROUGH vs BOYAU: NOUN

A length of cord about a metre long with a narrow cylindrical weight at one end and loops at the other. Used for cleaning rifle barrels, by pulling through a piece of cloth.
Cleaning implement consisting of an oily rag attached by a cord to a weight; is pulled through the barrel of a rifle or handgun to clean it

A line, drawn winding about, in order to enclose several tracts of land, or to attack some works.
In military fortification, a trench or ditch covered with a parapet that provides communication between two trenches, particularly the rear and front lines. Boyaus were typically constructed in a zigzag pattern to prevent exposure to direct enemy fire from the front.
A winding or zigzag trench forming a path or communication from one siegework to another, to a magazine, etc.
In fort, a ditch covered with a parapet, serving as a means of communication between two trenches, especially between the first and third parallels. Also called a zigzag or an approach.

Relieve oneself, Wipe up, Pull off, Hike up, Clear away, Hook up, Penicil, Polish off, Slip by, Carry through, Bring through, Make it, Come through, Save, Survive

Filanders, Ablaqueate, Gastroraphy, Air shaft, Intestine, Enterotome, Ducere, Mesogaster, Anfractuosity, Caponiere, Shoad, Catchdrain, Tharm, Inosculation, Typhlosole

Brush down, Pull out, Relieve oneself, Wipe up, Pull off, Hike up, Clear away, Hook up, Polish off, Slip by, Carry through, Make it, Come through, Save, Survive

Filanders, Ablaqueate, Gastroraphy, Air shaft, Intestine, Enterotome, Ducere, Mesogaster, Anfractuosity, Caponiere, Shoad, Catchdrain, Tharm, Inosculation, Typhlosole

Great location, pull through sites, big rig friendly.
Yarn over and pull through both of them.
But through the pain-filled haze, thoughts of her children gave her the courage and strength to pull through.
Feed your cord through the eye of the wire and pull through.
Pull out a portion of the hair tie and pull through the ponytail for about half the length of the hair.
Hospital to pull through a question by shrapnel from one reservation: you and then through.
When you feel the material pull away, release the material and let it pull through the feed wheel.
Video shows driver Chris Small pull up to the gate of the parking garage and pull through.
Pull down on the canvas to pull through any remaining slack.
Pull, pull through - take a turn at the front.

The enemy's operations continued to be confined to the completion of their batteries, and the finishing of their boyau.