The towers are staffed by contract air traffic controllers at small airports that specialize in general aviation.
在一些小机场，通用航空的合同制空中交通管制员在管制塔工作。
General aviation
原声例句
NPR音讯 2013年5月合集
纯飞行
Instead, it caters to a range of products meant for general aviation.
相反，它迎合了一系列用于通用航空的产品。
纯飞行
The Phoenix-based firm offers products and services to major planemakers, the business jet market, and even the general aviation market.
这家位于凤凰城的公司为主要飞机制造商、公务机市场，甚至通用航空市场提供产品和服务。
CHINA DAILY
The overhaul covers all regional air-traffic management bureaus, companies involved in civil aviation transport and general aviation, service providers, airport operators and flight training organizations, among other sectors.
此次安全大检查的范围包括各地区空管局、运输（通用）航空公司、服务保障公司、机场公司、飞行训练机构等。
中文百科
通用航空
通用航空（英语：General Aviation）是指除军事、警务、海关缉私飞行和公共航空运输飞行以外的民用航空活动。其所使用的飞行器包括滑翔机、动力伞以至喷气式飞机。全球大部分的航空交通飞行均属于这一类别，而全球大部分的机场也均设有专为通用航空服务的区域。
通用航空涵盖了广泛的业务范围，既有商业性的也有非商业性，包括飞行俱乐部、飞行训练、农用航空、轻型飞机制造及维护等。
英语百科
General aviation 通用航空
General aviation (GA) is all civil aviation operations other than scheduled air services and non-scheduled air transport operations for remuneration or hire. General aviation flights range from gliders and powered parachutes to corporate business jet flights. The majority of the world's air traffic falls into this category, and most of the world's airports serve general aviation exclusively.
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