“天河”本指“银河”。但这里则是对瀑布与飞流从天而降的一种自然现象的比拟与形容。如右图,是一方产自湖北省十堰市境内的汉江剥皮石,由于系硬软两种石质构成,而居中带状宽线的这种软质部分因在河道中长期受酸、碱性的差别侵蚀而显露出一条由上而下酷似河流、瀑布般的深槽,且深槽两侧线条规整而流畅自然,硬软两种石质色差对比度尤为强烈。奇 “Milky Way” means “Galaxy.” But here is a comparison and description of a natural phenomenon of waterfalls and flying currents falling from the sky. As shown on the right, one of the Hanjiang River pebbles, produced in Shiyan City, Hubei Province, is composed of two types of stony hard and soft stalks. The soft part of the median ribbon wide line is affected by long-term acidity and alkalinity The erosion of the difference revealed a top-down resembles a river, waterfall-like deep trough, and deep groove on both sides of the line regular and smooth and natural, hard and soft two kinds of stony contrast is particularly strong. odd