目前，多数微型无人机依靠电池驱动，因此航程很短。

At the moment, most small drones rely on battery power, so their flights are short.

youdao

目前，多数微型无人机依靠电池驱动，因此航程很短。

At the moment, most small drones rely on battery power, so their flights are short.

youdao