For every doubling in cumulative production volume, the cost of modules has declined by about 20%.
For every doubling in cumulative production volume, the cost of modules has declined by about 20%.
相对而言，每次积累产量增长了一倍，价格便同时减低了20%。
For every doubling in cumulative production volume, the cost of modules has declined by about 20%.
相对而言，每次积累产量增长了一倍，价格便同时减低了20%。