Special surface treatment processes are used to optimize efficiency, and typical maximum efficiencies are about 16 percent, with a range of 13-17 percent.

特殊表面处理工艺使其获得最佳效能，通常其效率在13到17%之间，最高大约为16%。

youdao

Special surface treatment processes are used to optimize efficiency, and typical maximum efficiencies are about 16 percent, with a range of 13-17 percent.

特殊表面处理工艺使其获得最佳效能，通常其效率在13到17%之间，最高大约为16%。

youdao