block system वाक्य

When comparing RO and carbon block systems, Hammer notes that carbon blocks are less costly to maintain and repair.
With the ECO-Block system, Cotton said, a house starts out as a hollow-walled shell made of expanded polystyrene foam.
As with most modern roller coasters, a block system keeps trainsets moving and prevents trains from colliding with each other.
RO systems waste two gallons of water for every gallon filtered, while carbon block systems filter continuously with regularly changed filters.
In both systems, a distant signal tells the driver the aspect of the following home signal according to the Block system.

Another common block system exists in which students spend up to 100 minutes per class, and earn four credits each semester.
Manual block systems work by dividing up a rail line into predefined " blocks ", which are typically demarcated by fixed signs.
This formerly served as the control centre while the line was signalled using the Radio Electronic Token Block system ( RETB ).
The electric telegraph provided the ability for signalmen to communicate with each other and provided the basis for the absolute block system.
This manual block system is still on use on the Long Island Rail Road, which had been a subsidiary of the PRR.