【摘要】 鸡西煤气引入管断裂现象时有发生,其断裂部位多发生在引入管出地前的弯头处,主要是由于地基沉降而引入管安装防沉措施不佳造成。更多还原

【Abstract】 Sometimes the let-in pipes is broken in Jixi,the break is always in the bends of the let-in pipes which begins to crop up before.Because the foundation keeps down,but the measure of avoiding keeping down is not suited to it.更多还原