干线

干线 refers to a main line or primary route, often used in contexts like transportation, communication, or infrastructure. It emphasizes the central or most important path compared to smaller or secondary ones.

The character 干 (gān) means 'main' or 'central,' and 线 (xiàn) means 'line' or 'route.' Together, they form a term that highlights the primary or central line in a system or network.

干线 is commonly used in transportation (e.g., railway or highway systems), telecommunications, and even in business contexts to refer to core operations. It reflects the importance of central routes or systems in daily life and planning.