这个规则同样适用于晶体尺寸和频率的先择。

This apply also to crystal size and frequency.

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但是任何真实晶体的尺寸都是有限的。

However, any real crystal always has a finite size.

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采用真空坩埚下降法在石墨坩埚中生长了大尺寸CaF_2晶体。

Large size CaF_2 crystal has been grown by the Bridgman-Stockbarger method using a graphite crucible.

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采用真空坩埚下降法在石墨坩埚中生长了大尺寸CaF_2晶体。

Large size CaF_2 crystal has been grown by the Bridgman-Stockbarger method using a graphite crucible.

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