external limit ga(u)ge

例句：

1. 1. The company's headquarters are located in the city center, which is an external location.
   公司的总部位于市中心，这是一个外部位置。
2. 2. The research team was working on a project that required extensive external collaboration.
   研究团队正在从事一个需要广泛外部合作的项目。
3. 3. The new product is designed to be used externally, meaning it can be used without being inserted into the body.
   新产品是设计成可以外部使用的，这意味着它可以不用被插入到身体中。