Sentence examples for is a principal source of from inspiring English sources
Fujian province is a principal source of the overseas Chinese population.
Nevertheless, this is a principal source of the tension in interactions between the police and black men like me.
Magnesite, the mineral magnesium carbonate (MgCO3), a member of the calcite group of carbonate minerals that is a principal source of magnesium.
Motor vehicle manufacture is a principal source of employment in each of the mainland state capitals and has become closely associated with immigrant labour.
Rice (Oryza sativa L). is a principal source of food for more than half of the world population, especially in South and Southeast Asia and Latin America.
The transport sector is a principal source of global emissions of greenhouse gases.The only long-term solution to this connected set of problems is to reduce the world's reliance on oil.
Michael Praetorius, original name Michael Schultheiss, (born February 15?, 1571, Kreuzberg, Silesia died February 15 , 1621 Wolfenbüttel, Brunswick-Wolfenbüttel), German music theorist and composer whose Syntagma musicum (1614 20) is a principal source for knowledge of 17th-century music and whose settings of Lutheran chorales are important examples of early 17th-century religious music.
Students have always been a principal source of seasonal vineyard workers.
