operating condition of test

例句：

1. 1. The operating condition of the machine is critical for its efficiency.
   机器的操作条件对其效率至关重要。
2. 2. The operating conditions in this region are suitable for growing crops.
   该地区的运行条件适合种植作物。
3. 3. The engineers carefully adjusted the operating conditions to optimize the performance.
   工程师们仔细调整了运行条件，以优化性能。