Is the reference implementation for JSR-170. It is part of the Apache foundation and provides level 1, 2 and optional functionality.

它是JSR- 170的参考实现，Apache基金的一部分，提供级别1,2和可选功能。

youdao

Now of "silver dragon" high quality, triple frequency balanced overall energy feeling energetic, deserved has in the "reference level", and its unique noble style is part of its strong strength!

现在的“银龙”具有极高的素质，三频均衡整体能量感充沛，当之无愧的入选了“参考级别”，而其特有的高贵风格更是它强劲实力的一部分！

youdao

Now of "silver dragon" high quality, triple frequency balanced overall energy feeling energetic, deserved has in the "reference level", and its unique noble style is part of its strong strength!

现在的“银龙”具有极高的素质，三频均衡整体能量感充沛，当之无愧的入选了“参考级别”，而其特有的高贵风格更是它强劲实力的一部分！

youdao