c 该法确立了管理飞机操作和驾驶、飞行计划和准备以及飞机维护和设备的基本法律义务,但这些义务的规定相当笼统。因此,该法第 135 条要求局长公布要求,以更精确地补充、扩大和详细说明履行这些义务的方式。这些要求是飞机运营商或飞行员能够让局长满意的手段,以履行与飞机操作有关的义务或他们各自持有证书的权利。
a Institute of Ecology, Chair of Soil Science, Technische Universit ¨ at Berlin, Berlin, Germany b Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark c Soil Science, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany d Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland e Leibniz Centre德国穆尼堡农业景观研究(ZALF)土壤生物学小组,环境科学系,瓦格宁根大学,荷兰瓦格宁根