这些参考将保留对这个对象的访问权直到您明确地表明“没有注册”它们，这意味着如果您对它们使用不当将会导致一些错误。

These references retain access to the object until you explicitly "unregister" them, which means that they can cause a few problems if you don't take care of them.

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您可以受益于 R，但不必须担心它的继承权问题。 Cameron Laird 在 他的 developerWorks 文章 R handy for crunching data 中介绍了与 R 相关的一些恰到好处的背景和参考资料。

You need not worry about its heritage to benefit from R. Cameron Laird provides some good background and resources related to R in his developerWorks article, R handy for crunching data.

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利用导频符号进行权向量更新算法，并作为空间波束成型器的参考信号。

The pilot symbols were used to estimate channel and acted as reference signal of beam-former.

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