It detached, lifted away to fly in a parking circle low overhead.

它分离，升空在头顶低处的停车圈内飞行。

There's low overhead, lots of foot traffic.

租金便宜客流量大。

The fragmented ownership and low overhead costs help facilitate economies not of scale, but of agglomeration, with rows of idiosyncratic spaces that feel personal, informal and intimate.

分散的所有权和较低的间接成本有助于促进集聚经济而非规模经济，一排排独特的空间给人以个人、非正式和亲密的感觉。

In fact, Ian Bullock of Feral has said that, " Metal's richer feature set and lower overhead have allowed them to bring cutting edge games to the Mac with frame rates and effects that simply weren't possible before."

实际上，Feral 的 Ian Bullock 说过，Metal 更丰富的特性和更低的系统开销让他们能够把最新的游戏带入 Mac，其所达到的帧率和效果是以前不可能实现的。