余下的数量excess

• 尽量减少下料时留的余量，一年节约的再生胶价值可达4万元。

  By reducing the excess left behind when adding material by as much as possible, the value of recycled rubber saved in a year can reach 40,000 yuan.

• 容积小于标准值的钢瓶，其变形余量小，极易发生爆炸事故。

  Steel cylinders that are smaller than standard volume have little excess room to deform, and could easily cause explosions.