An integer partitioning key is more efficient than a character key, which is more efficient than a decimal key.

整型分区键要比字符键高效，而字符键又比小数键高效。

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Hold down Cmd + Opt or Shift key and drag can change the value in decimal or 10 interval.

按住Cmd + Opt或是Shift键，然后拖动可以一次改变10个单位的数值。

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The private key and public key are the function of a pair of big prime number (decimal number between 100 and 200 bit or larger).

其公开密钥和私人密钥是一对大素数（100到200个十进制数或更大）的函数。

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