subsidiary load

例句：

1. 1. The new design reduces the subsidiary load on the building structure.
   新设计减轻了建筑物结构上的附属负荷。
2. 2.The heavy machinery is designed to carry a subsidiary load of up to 500 kilograms.
   重型机械设计承载能力为500公斤的附属负荷。
3. 3. The engineer carefully calculated the subsidiary load for the bridge'sfoundation.
   工程师仔细计算了桥梁基础的附属负荷。