英语语法分析

The technology of amplifying solar energy can save the number of semiconductor materials required for photovoltaic cells.

通过放大太阳能的技术可以节约光伏电池所需的半导体材料的数量。

The laser at photovoltaic cells mounted on the pelican's underside, charged the chopper's battery, keeping it aloft for 12 hours and 27 minutes.

激光瞄准安装在鹈鹕下面的光伏电池，给直升机的电池充电，使它在空中飞行了12小时27分钟。

Photovoltaic systems are also at less than 2 percent.

光伏系统停工期同样不到2%。