helipads
n.
直升机起飞及降落场，直升机停机坪( helipad的名词复数 );
例句:
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Consultants in heliport development and helicopter operations. Specializes in planning, design and development of and helipads.
为直升机机场及其营运提供顾问服务, 擅长直升机机场的规划 、 设计与开发.
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Missions can currently land only at lit helipads but the next stage will see landings at unlit sites.
来自BBC