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Langzeitversuch

m -(e)s, -e
冶金 long-term test
医疗的 prolonged experiment
技术 long term test; test of long duration
测量仪器 extended time test; long-time test
物理 long-duration creep-rupture test
环境 long-term experiment; long-term experiment 1. Experiment lasting for a relatively long period of time. 2. Experiment whose results become effective after a long period of time