Finally, a delta backup captures anything that has changes since the last backup of any kind (sometimes called a level 2 backup).

最后，差异备份捕捉自上一次任何类型的备份以来的一切变化(有时也称2级备份)。

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DB2 merge backup enables you to replace regular full DB2 backups with more-frequent, full merged backups by combining incremental and delta backups with a recent full backup, as shown in Figure 2.

通过使用最近的完全备份来合并增量备份和delta备份，DB 2 Merge Backup使您能够使用更频繁、完全融合的备份替换常规的完全DB 2备份，如图2所示。

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A delta backup is called a level 2 backup.

delta备份也被称为2级备份。

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du So, we can also write delta u as integral from 1 to 2 of du.

我们也可以将Δu写成,从1到2的积分。

麻省理工公开课 - 热力学与动力学课程节选

So if we think about what that delta energy is, we call that the ionization of the 2 s, that's different from saying second ionization energy.

因此如果我们考虑这个，Δ，E，是什么的话，我们可以称它为，2，s，电子的电离能，这与我们前面所说的第二电离能是不同的。

麻省理工公开课 - 化学原理课程节选

Then we would be able to change our equation to make it a little bit more specific and say that delta energy here is equal to energy of n equals 6, minus the energy of the n equals 2 state.

第一激发态，我们就可以把方程,变得更具体一点，能量差,等于n等于6能量，减去n等于2的能量。

麻省理工公开课 - 化学原理课程节选

This, in turn, was based on a military jet called the Fairey Delta 2.

ECONOMIST: Supersonics on the back burner | The

General Dynamics, which built GeoEye-1, has had no problem with its last 10 satellites, while Boeing 's Delta 2 Rocket, set to carry GeoEye-1 into orbit, has a track record of 70 successful launches.

FORBES: In The Beltway Orbit: GeoEye

General Dynamics (nyse: GD - news - people ), which built GeoEye-1, has had no problem with its last 10 satellites, while Boeing 's (nyse: BA - news - people ) Delta 2 Rocket, set to carry GeoEye-1 into orbit, has a track record of 70 successful launches.

FORBES: In The Beltway Orbit: GeoEye