Inconveniently, different products had curvesof a different slope and different sources of cost reduction.
对于不同的产品，其经验曲线的走势千差万别，成本削减的原因也各有千秋。
2
The number ofcurves on the road was 48, matching the 48 letters of the ancient Japanese alphabet. Therefore, the tourist guides started to call the slope Iroha-zaka.
道路有48个弯曲道，代表了日本古代48个字母，因此人们开始称斜坡iroha - zaka。
3
But if factor supply curves to the industry slope positively, all firms together cannot get an increased quantity of factors of production at an unchanged price.