The construction, main technical characteristics, working principle and test method of the soft rock expansive power determinator are systematically introduced in this paper.

It comes from a country, the United Kingdom, which was quite an expansive, trading, colonial power in the past and all these have brought all sorts of other new words into the language.

Expansive dreams about renewable energy, like al Gore's hope of replacing all fossil fuels in a decade, are bumping up against the reality of a power grid that cannot handle the new demands.