LDECRexile
Established Member
Two more bigguns up at Vic.
http://i13.photobucket.com/albums/a260/Geeves8612/IMG_20150105_114414356_zps1e9ce52d.jpg
Lil diragram for you, this is the same as they give us to learn at work
http://irolearn.co.uk/wp-content/uploads/2014/05/image-1-from-page-227.png
Bigguns up = fab
Diagram is equally fab, thank you.
While I've got you, I have been told off this site that Portal is the term for the mouth of a tunnel (which I accept and agree with, by the way) and what I and others have been calling 'portals' in this forum, eg the arched metal structures on Sankey Viaduct which will eventually support electricity wires, are correctly called 'masts'. is my use of portal wrong, unusual, misleading or fattening?
Dave