We impolder fuxin infrastructure information managing system based on the gis theory . this system has the following functions f digitizing map , editing map ; space querying ; space analyzing , arbitrary map output , section analyzing 它主要实现的功能：地图数字化；地图编辑；空间特征与非空间属性的双向查询；空间分析；任意图幅的地图输出；断面分析。
2.
Therefore , it is important to accelerate economic construction , and to maintain ecological balance , and sustainable development of arid , and semiarid areas in order to use and impolder groundwater resources in reason and phase 因此，合理、协调地开发和利用地下水，找出地下水位监测的省钱、省力方法，对干旱、半干旱地区的生态平衡、经济建设、农业发展的影响重大。
3.
According to the situation of china , the generalization should follow these two steps : the first is test - product stage . the main task of first stage is to impolder high - equality and costly wood - frame - construction house , focusing in depth on the sufficent - ability consumers 根据我国国情，我国推广轻型木构小住宅，须分两步走：第一阶段为实验、试生产阶段，针对有足够消费能力的客户群，研发高品质、高价位的木构小住宅。
4.
Such methods as compounding retardants , compounding water - reducing agents ( which has various the extent of condensation ) , changing the ways of addition and retardarce method , are used to impolder new water - reducing agent and construction method to salve slump loss , but it can not work drastically 通过复合缓凝组分、不同缩合度减水剂的复合、改变掺加方式、缓释法等技术路线开发新型减水剂和施工方法来解决坍落度损失问题，但是这一问题并没有得到根本解决。
