您仍然需要保留对象定义脚本，并且可能仍然能够在任何时候完整地运行它们以添加新对象。
You still want to keep the object definition scripts and you would still like to be able to run them at anytime — in their entirety — to add new objects.
平行投影会真实保留对象的某些信息，但单一的平行投影会损失对象的许多信息。
Parallel projection possesses the advantage of retain some information of object; but by mono parallel projection many information will be lost.
Retain Iteration似乎最适合设为默认设置，因为只有应用程序需要对象时才在迭代之外保留对象。
Retain iteration seems to be the best fit for the default, because you should retain objects beyond an iteration only if the application requires it.
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