However, to construct the middle-range theory is not only a part of the rational strategy but also a part of the legitimate strategy.

而建构中层理论既是合理化策略的一个组成部分，也是合法化策略的一个组成部分。

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In theory, a wide range of improved materials could be made in nanocrystalline form: more proof that small is beautiful.

ECONOMIST: Nanotechnology

The heliocentric theory answered these questions and suggested a whole range of useful hypotheses about the rest of the universe.

FORBES: Why The Paradigm Shift In Management Is So Difficult

These were set up in 1993, and were the first in Britain to offer a comprehensive range of practical television skills to complement the usual cultural theory.

ECONOMIST: Education: Degrees of choice | The