增量备份就是对最近一次数据库全备份以来所有修改了的数据进行备份。
Incremental backup is a backup of all of the data that has changed since the last full database backup.
可充电混合动力车储存来自电力系统中的电能，与丰田普锐斯相比，这类车采用全电动模式的次数更频繁。
Plug-in hybrids store electric energy from the power grid to run more often in all-electric mode than a Toyota Prius.
首先将整个测试集划分成若干定长块，对非全0/1块，使用折半的方法划分；对全0/1块，使用标记位来表示划分的次数。
For non-0/1 data block it used dimidiation technique, and for 0/1 data block it used some mark-bits to represent the times of partitioning.
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