This is an excerpt from a BBC article on the U.S. midterms:
She is in charge of the mechanics of voting, making sure polling stations operate smoothly, ballots are collected safely and counted accurately.
Why are there no definite articles before "polling stations" and "ballots"? Would it be natural to put them there?
When I am talking about a restaurant I can say "the waiters" because they are an expected part of any restaurant.(they are introduced by the word "restaurant") When I am talking about a house I can say "the walls" because every house is expected to have them. When I am talking about a library I can say "the books", When I am talking about a plane I can say "the crew" etc.
It's clear from the context that the speaker is talking about voting and the concept of voting obviously includes ballots and polling stations. Why didn't they use "the"?