民航机务专业术语|英语天地 - 机务在线--认真、... ... service ceiling (practical ceiling\operating ceiling) 实用升限（使用升限） take-off run 起飞滑跑长度 landing run 着陆滑跑长度 ...
双语例句
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The animals were being taken from the sanctuary because their population had grown beyond its capacity, said Martin Mulama, the Kenya Wildlife Service Rhino Program Coordinator.