The outer array contains a single key/value pair, with the key Now.

最外层数组只包含一个键/值对，键名是 Now。

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This paper describes experimental design used in the inner array and the outer array of robust design, including factorial design, fractional factorial design, foldover design, etc.

叙述了稳健性设计内外表中所用的实验设计，包括析因设计、部分析因设计、折迭设计等方法。

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The trick is getting the table names array from the outer block into the inner block without explicitly passing it in somehow (which would have made the DSL ugly).

此处的技巧是：将表名数组从外部的block隐式地传递到内部的block中。用显式方式传递会让DSL看起来很丑陋。

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