Purified silicon, the basic material of such cells, is expensive. The temptation, therefore, is to use less of it.
作为太阳能电池基础材料的纯硅，是昂贵的，因而这诱使其使用减少。
From the perspective of manufacturing costs, PV systems require purified silicon while solar-thermal ones do not.
从材料成本来看，光伏需要提纯硅而光热不需要。
Globally, the solar power sector is growing at about 40 per cent a year, constrained only by the limited supplies of purified silicon for solar cells.
就全球而言，太阳能电力部门以每年40%的速度在增长，其增长仅拘泥于为制造太阳能电池所提供的有限的精华硅的供给。
The coarse silicon tetrafluoride can be finally purified to the purity of more than 99.5% by the invention, thereby the use requirements of electron and semiconductor trades are completely satisfied.
本发明最终可将粗四氟化硅的纯度提纯至99.5%以上，完全满足电子和半导体行业的使用要求。
The coarse silicon tetrafluoride can be finally purified to the purity of more than 99.5% by the invention, thereby the use requirements of electron and semiconductor trades are completely satisfied.
本发明最终可将粗四氟化硅的纯度提纯至99.5%以上，完全满足电子和半导体行业的使用要求。
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