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15-18%

15-18%

15-18%

15-18%

1

The company also boasts that its average consumer tips waiters 21%, slightly above the normal range of about 15-18%.

该公司还称，其用户平均给服务员 21%的小费，略高于 15-18%的普通水平。

2

Whereas silicon has an efficiency of around 15-18%, plastic devices can only achieve 7-8% at best, currently .

目前，硅材料光电板的效率大约为 15-18%，而塑料光电板的效率只能达到 7-8%。

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