摘要
当矿山井田范围很大或一些有特殊需要的条件下，目前规程规定的导线测量精度满足不了要求。论述了井下导线的合理等级与精度标准，并以几个矿山的实例作为验证。
present regulations can't meet the preeision demamds of undergroundl traverse survey when minefields are too large or under special conditions, Rational classes and preeision dergrounel traverse survey are discussed, several mines are also clted as the proving praetice
