fuel burn-up

基本解释

The maximum of burn-up fuel elements could be controlled below the burn-up limit.
实现平均燃耗条件下卸料的最大燃耗不超过限值的设计目标。
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Due to deep burn-up, the spent fuel of nuclear power reactors has not only complex composition, but also high-level radioactivity.
动力堆乏燃料由于其燃耗深，所以成分复杂，放射性强，从而给其后处理分析带来极大的困难。
Processing of spent fuel with high burn-up should take special measure in order to avoid heavy radiolytic degradation of the solvent and the criticality of plutonium.
当处理高燃耗的乏燃料时，应采取特别措施，以避免造成溶剂的严重辐解和钚的临界问题。

Nuclear engineers have long known of increased risks from high burn-up fuels, but scientists at Argonne have been sounding the alarm about storage dangers in recent years after their research ( pdf) showed high burn-up fuels may result in fuel rods becoming more brittle over time.
FORBES: Fancy New Lids for Nuclear Waste Casks, As Contents Get Hotter