The Air Force \ 's Air Mobility Command allows a prospective boom operator to qualify by completing virtual missions in high-fidelity boom-operator training devices in lieu of onboard a KC-135.

如果训练者在KC - 135加油机上的高保真加油操作训练设备上完成了虚拟任务，就能获得美空军机动司令部授予的加油员资格。

youdao

Training includes the inspection of machine parts, diagnosis of engine malfunctions, calibration of onboard computer controls, and much more.

培训包括检查机械部件，诊断引擎故障，校准车载电子系统等等。

youdao

Each lease is all-inclusive, covering a set number of flights for astronauts to and from the module per year, the assistance and support of an onboard Bigelow crew, station maintenance, living supplies, communications and astronaut-training programs.

FORBES: Magazine Article