In experiments, an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs, but an injection from sinistral eggs does not influence dextral eggs.

在实验中，用取自右旋卵子的细胞质进行的注射，可改变左旋卵子的模式；用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。

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In experiments, an injection of cytoplasm from dextral eggs changes the pattern of sinisterly eggs, but an injection from sinisterly eggs does not influence dextral eggs.

在实验中，右旋卵子的细胞质注射改变了左旋卵子的形态，但是左旋卵子的细胞质注射不会影响到右旋卵子。

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I designed experiments that attacked this question, but first I had to do field tests to understand the spiral pattern.

我设计了试验来解答这个问题。但是首先我不得不做些实地测试来理解这个枝叶螺旋布局模式。

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But Celebration also proposes a model for a sustainable pattern of American life in the future, with recycling programmes and Internet infrastucture built in, and educational experiments at the local schools.

ECONOMIST: Some of the best tourist destinations are man-made