With all the elements of this type of system as open source and free, the barriers to full adoption then become employee training and managerial reluctance to change.

如果这种类型系统的所有元素都是开源和免费的，那么完全采用无纸办公的困难就变成了员工培训和管理层排斥态度的转变。

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The full-automatic telescopic type automobile beach umbrella can automatically protrude and open, furl and contract and is convenient to be operated.

该全自动伸缩式汽车遮阳伞能自动伸出打开、收拢收缩，操作方便。

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