bolt load for operating conditions

例句：

1. 1.The bolt load on the car is too heavy for me to drive it.
   汽车上的螺栓负载对我来说太重了，我无法驾驶它。
2. 2.The bolt load on the roof was too much for the old car to handle.
   旧车的屋顶螺栓负载太重了，无法处理。
3. 3.The bolt load on the door was too much for the lock to open.
   门上的螺栓负载太重了，锁无法打开。