利用的特征价值。例如，对于部署了四个小时的叉车，相对于八个小时的总观察时间，测量出50％的利用率。
Characteristic value for the utilisation. A degree of utilisation of 50 % is measured, for example, for a forklift truck that is deployed for four hours, related to a total observation period of eight hours.
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