Good Question . Next please.....
galvanised pipe
In hydraulic mining, powerful jets of water are directed at thick beds of gravel to break them down and wash the residue through lines of sluices designed to separate gold particles.
So that, as a user of electricity, he or she does not have to rely on only one local power generating station. A National Grid is a network of electricity supply lines carrying power from various generating stations There is usually more than one supply line to most points (or grid nodes), from more than one generating station. So, by using a National Grid, users can continue to receive power from the other power stations in the network whenever a power station or a distribution sub-station has to be taken out of service for maintenance work or when some power lines are destroyed by bad weather.
Hydraulic oil and hydraulic fluid are different. Hydraulic fluid is used in small systems such as car brakes. Hydraulic oil is used in large systems such as loaders.
I think they decided that it was just more user friendly and more fool proof than numbers. (747's hydraulic systems are numbered) The color coding of the hydraulic lines is a European practise. The Boeing designs and most US designed a/c have their hdraulic systems numbered. The color code is really just a way to Identify the separate systems in the documentation and the cockpit procedure as well as physically on the hydraulic tubing.
grid lines are like calligraphy
Books that have grid lines are called Graphing Books .
You do not add more grid lines, they are present for all displayed cells. But, you can turn the grid lines on or off. In Excel 2007, go to the Page Layout tab in the Sheet Options and turn the grid lines on or off by checking or unchecking the box in front of View (under Grid Lines).
Lines of latitude and the lines of longitude.
Lines of latitude and the lines of longitude.
1,000 meters
Pressure by the hydraulic pump is made​​.
lines
Lines of latitude and the lines of longitude.
Grid
I think {grid or grid lines} is the term you're looking for.
its called a grid.