但你们确定的根本原因却是照明不足，员工培训效果不好。
You determined that inadequate lighting and ineffective operator training were root causes.
其他一些，像变速的冷却设备及照明等，则可弥补未考虑进直接基建投资的不足。
With others, like the variable-speed chilling devices and lighting, there was an offset to be considered in the immediate investment of capital.
在黑夜里，过多的航班在专用照明设备光线不足的情况下起降。
A disproportionate number of flights now have to take off and land at night without proper lighting.
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