This is the 2603rd most frequent Chinese word.
设立
"设立" means "to establish" or "to set up."
In this sentence, '设立' is used to express the action of setting up or establishing an entity, which is '一个分支机构' (a branch).
公司决定在新城市设立一个分支机构。
The company decided to establish a branch in the new city.
Here, '设立' denotes the formal establishment or creation of rules or laws, specifically '新的环保法规' (new environmental regulations).
政府设立了新的环保法规。
The government has established new environmental regulations.
In this example, '设立' conveys the creation or initiation of a program, which is '一个奖学金项目' (a scholarship program).