This sleek design allows single sounds to convey useful information, and in fact, even the absence of a sound has been enlisted to express something specific.

这种圆滑的设计使单一的声音也能传达有用的信息，事实上，即使没有声音也会被用来表达一些特定的含义。

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The extraction of flavone by methanol from sweet carambola leaves was studied by a single factor test and orthogonal design test.

利用甲醇浸提、单因素试验和正交试验探讨了从甜杨桃叶中提取黄酮的最佳工艺条件。

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DESIGN: single sample and single factor analysis.

设计：单一样本单因素分析。

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This primarily white ceramic toast cooker boasts a simplified design, a single-feed toaster, and a V-shaped rack to hold the toast for use on the kitchen table.

ENGADGET: Glide toaster gives breakfast bread a new flair

The Model T couldn't have been the Model T unless the automobile were on its way to becoming too interesting a product for consumers ever to be satisfied with a single model, a single manufacturer, a single design statement.

WSJ: Jenkins: Apple's New Normal

The plan has been followed, more or less, as construction has stumbled forward over the past decade, but, after winning the competition for the master plan, Libeskind never managed to get a commission to design even a single building himself.

NEWYORKER: Shaping The Void