This approach may also be taken to update systems with reference data especially where timing of such updates is not critical as in the case of updates with a given start date.
也采用此方法通过使用参考数据更新系统，尤其是此类更新的时间不重要时，例如在给定开始日期进行更新的情况。
Residue seems to self-generate but it doesn't self-destruct! Delete what you can to begin with, and purge your reference files regularly, as things get out of date and lose their value to you.
残留似乎是自我产生的 但它不会自我消除.删除你能够删除的 时常整理你的参考文件 当它失去时效 失去价值.
Because this example uses date values as a point of reference for the data, we inform gnuplot of this with the format of the values. In the example contained in Listing 1 sarx.txt
因为这个示例使用日期值作为数据的参照点，需要告诉 gnuplot 日期数据的格式。
And despite the occasional slip of a date reference from various executives, an official ship date still hasn't been set.
Its claim came on the 10th anniversary of the start of the war, although it made no reference to the significance of the date.
Thirdly, they complain that the beneficiaries of the scheme are to be picked by reference to official poverty data, out-of-date and unreliable (the 150 districts, for example, are not necessarily the poorest).