【摘要】 通过介绍水平定向钻机的组成、工作原理,结合工程应用讨论了在实际操作中应注意的具体事项,水平定向钻机在城市建设中将会发挥巨大的作用。更多还原

【Abstract】 The article introduced composition and principle of horizontal directional driller,discussed some matters needing attention in operation through the project application,horizontal directional driller will have huge function in urban construction.更多还原