内での

within

→ 内
phrase Rare #30,711
within Used after a place or area to describe an action or situation occurring inside it, as in "飲酒" (drinking) or "狩猟" (hunting).
JA: 図書館内での会話はお控えください。
EN: Please refrain from talking inside the library.

日本では電車バス内での飲食マナー違反です

In Japan, eating and drinking on trains and buses is considered bad manners.

図書館内での読書は禁止です

Reading is prohibited inside the library.

駐車場内でのペット散歩ご遠慮ください

Please refrain from walking your pets in the parking lot.

キャンパス内での飲酒禁止されている

Drinking alcohol on campus is prohibited.