... worker；工人，劳动者，工作者，职工 working altitude；作业高度 working application；工作应用[操作] ...
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altitude working 高处作业
High altitude working truck 高空作业车
·2,447,543篇论文数据，部分数据来源于NoteExpress
In order to get the widest possible view, the airplane climbed to 22, 000 feet, twice its normal working altitude.
NPR: Crop Cops Take to the Sky
Fossett will use a bigger balloon this time, and control its altitude by working a propane ethane burner.
CNN: Global balloon race to get off the ground tonight
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