The signification of the parameters and coordinate in the placement function is analyzed.

分析了定位函数中各参数和坐标点的含义。

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To aid in displaying table data on a mobile device, Rational HATS provides the Columns placement function for the table, Subfile (check box), Subfile (drop-down), and Subfile (pop-up) widgets.

为了在移动设备之上显示表格数据，Rational HATS为Table, Subfile(复选框)，Subfile(下拉)，Subfile(弹出)工具提供了Columns placement功能。

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In this way, mapping of placement groups (and replicas) to storage devices does not rely on any metadata but instead on a pseudo-random mapping function.

这样一来，放置组(以及副本)到存储设备的映射就不用依赖任何元数据，而是依赖一个伪随机的映射函数。

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