Traverton’s city council wants to minimize the city’s average yearly expenditures on its traffic signal lights and so is considering replacing the incandescent bulbs currently in use with arrays of light-emitting diodes (LEDs) as the incandescent bulbs burn out.
I am just failing to search the concord between the meaning of the underlined part and the main sense of the sentence.
What is the role of the underlined part in the meaning of the sentence?
It’s not a particularly well-written sentence, but the meaning is that as the current incandescent bulbs burn out, they will be replaced with the LEDs.
This might clarify it a little:
Traverton’s city council wants to minimize the city’s average yearly expenditures on its traffic signal lights and so is considering replacing the current incandescent bulbs, as they burn out, with arrays of light-emitting diodes (LEDs).
Compared to incandescent bulbs, LED arrays consume significantly less energy and cost no more to purchase.
What is the meaning of the underlined parts?
LEDs are not more expensive to buy than incandescent bulbs.
In order to reduce the number of items damaged while in transit to customers, packaging consultants recommended that the True Save mail-order company increase the amount of packing material so as to fill any empty spaces in its cartons.
What is the meaning of the underlined parts?
The experts recommended that the company put more packaging material into the carton.
if I don’t use that then any problem?
If you don’t use what exactly?
What is the sentence you intend using?
The experts recommended the company put more packaging material into the carton.
It’s okay, but ‘that’ helps the flow.