保养工

The derrickman lubricated crown and travelling block yesterday.

昨天这个架工保养了天车和游动滑车。

In the past over ten years, many problems, especially soft ground's non-uniform settling and large subsidence after finished and jump-off on bridge's end, arise from highway's building along national construction progresses.

近十几年来，随着国家建设的不断发展，公路建设中产生的问题，尤其是软土地基的不均匀沉降、工后沉降量大、桥头跳车等问题尤为突出，地基处理方法是否选择适当对工程的质量、工期、维修保养以及经济效益均有很重大的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。