主要来源 meaning in English
main source
principle source
Examples
- Automobile exhaust gases are considered the major source .
据认为汽车排出的废气是主要来源。 - The fishing industry was a primary source of colonists' wealth .
捕鱼业是殖民者财富的主要来源。 - The three main sources of power are coal, oil and water power .
动力的三个主要来源是煤，石油和水力。 - One or two staple crops are the chief sources of food intake .
一、两种主要农作物是人们食物的主要来源。 - Incomplete combustion is the principal source of man-made carcinogens .
不完全燃烧是人为致癌物的主要来源。