Sentence examples for about four periods from inspiring English sources

Tells about four periods in its history, quoting from Mary Gibson Hundley's"The Dunbar Story: 1870-1955".

The cement hydration reaction process could be divided into about four periods, that is, induction period, acceleration period, attenuation period and steady period.

It now houses a museum containing artifacts from and information about four periods of California history — Indian, Mission, Spanish and Victorian.

194 (20042004) 544 574] that demonstrate that common second-order operator-splitting methods can exhibit instabilities when integrating the Brusselator equations out to moderate times of about seven periods of oscillation.

After about one period passed, I soon developed a sense of why we were there.

"It's important to know that everyone around me was white; I was the epitome of a minority," she wrote about one period living overseas.

Wright, who for his book interviewed about a hundred and twenty-five veterans, identifies four periods.

Flowering lasts about three months and fruiting period extends over five months.

The average number of young per litter appears to be about six; gestation periods of about 60 and 80 days have been noted.

Correct or not, Mr. Greenspan's choices have led economists and investors to raise questions about three specific periods of Fed policy making in recent years.

The excavations were not extensive enough to reveal the layout of the interior, but about six building periods were discovered above the platform.