新近的参考已经被增加，在线的资源的目录已经被更新。
Recent references have been added and the list of online resources has been updated.
为热转移模型的暗示解决者的速度已经被增加被直到二的因数。
The speed of the implicit solver for the heat transfer model has been increased by up to a factor of two.
当作业系统已经成熟，越来越多的特征已经被增加他们的文件系统。
As operating systems have matured, more and more features have been added to their file systems.
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