渗

Secondly, the preliminary models of grouting and drainage curtains, and the boundary pre-adjustment method are presented to further perfect the network seepage flow analysis method of rock masses. Then they are applied to the network seepage flow analysis of the Xiaowan high arch dam abutment and rock foundation in various cases.

其次，提出了工程中防渗帷幕和排水孔幕的数值模拟方法，以及岩体网络渗流分析的边界预调整法，进一步完善了工程岩体的渗流分析方法，并将其应用于小湾高拱坝多种工况下的坝肩和坝基岩体网络渗流分析。

Compared with the time, the impact of temperature factors on the layer thickness is greater. The surface hardness of 45 steel is greatly improved for the exist of FeB; the corrosion resistance of boronizing layer is excellent which can resist hydrochloric acid, sulfuric acid and sodium hydroxide.

相比而言，温度对渗硼层厚度的影响大于时间的影响；渗硼层中FeB相使表面硬度显著提高；渗硼层抗盐酸、硫酸、氢氧化钠腐蚀性优良。

In 1 irrigation time and 2 irrigation times treatments, soil salt content decreased by 11.7%, and soil salt content increased by 12.6% in 3-4 irrigation times treatments. 2 After irrigation, the mean reduction of soil bulk density was 6.5%, and the mean increment of soil total porosity was 18.1%. With the irrigation frequency increasing, soil density was decreased and soil total porosity was increased. 3 Soil infiltration course of reed field irrigated by wastewater fitted Horton infiltration model well. After wastewater irrigation, the first infiltration rate decreased, but the stable infiltration rate promoted with the wastewater irrigation frequency increasing. 4 Soil water-holding capacity was increased by wastewater irrigation. The maximum water-holding capacity in capillary was 90.15 mm in the treatment of irrigation 3 irrigations, and the maximum water-holding capacity in non-capillary was 4.15 mm in treatment of 4 irrigations.

废水灌溉后，土壤pH均值降低6.0%；废水灌溉1～2次，土壤含盐率降低11.7%，废水灌溉3～4次后，增壤含盐率增加12.6%。2）废水灌溉后土壤体积质量均值减小6.5%，总孔隙度均值增大18.1%；随着废水灌溉次数的增多，土壤体积质量和总孔隙度分别有减小和增大的趋势。3）Horton模型比较适合描述废水灌溉后芦苇群落的土壤入渗过程，废水灌溉降低了初渗率，但随着废水灌溉次数的增多，稳渗率增加明显。4）废水灌溉增强了土壤贮蓄水分的能力，废水灌溉3次吸持贮水量达到最高（90.15 mm），灌水4次滞留贮水量达到最高（4.51 mm）。

Because capillary pressure changes with water saturation, the change of mobile water saturation will cause the change of filtrational resistance, which is another cause of non-Darcy gas flow.

由于毛细管力将会随含水饱和度发生变化，因此可动水饱和度的变化会引起渗流阻力发生改变，而渗流阻力的变化也是气体产生非达西渗流的原因。

The rainfall infiltration theory of coal waste dump is analysed, the process of rainfall infiltration and its influence factor are introduced particularly at the same.

分析了矸石山降雨入渗的基本理论，详细介绍了降雨入渗的过程，以及矸石山降雨入渗过程的影响因素。

The paper takes the carburized gear which is applied in machinery industry as an example.

以机械工业广泛使用渗碳齿轮为例，分析热处理工艺影响硬度的各种因素，找出硬度变化的原因，确定合理的渗碳层深度和渗碳工艺并提出预防措施。

In this paper,various factors which can influence the hardness of gear have been analyzed,the causes of hardness changing have been found out and rational carburized layer depth and carburizing process have been ascertained.

以机械工业广泛使用渗碳齿轮为例，分析热处理工艺影响硬度的各种因素，找出硬度变化的原因，确定合理的渗碳层深度和渗碳工艺并提出预防措施。

In the present study, the effect of pre-heat treatment of isothermal normalizing on the structure and performance of 20CrMoH gear steel were studied, and the effects of the parameters of different carburizing on the microstructure in carburized layers of the steel were also investigated.

本文研究了20CrMoH 汽车齿轮用渗碳钢的预先热处理等温正火工艺对组织和性能的影响，还研究了不同渗碳热处理工艺参数对渗碳层显微组织的影响。

It can make carburized layer on titanium alloys by electrospark deposition, and the carburized depth is about 40～50 μm.

用电火花渗碳技术可在钛合金表面形成一层40～50μm厚的渗碳层，分析显示渗碳层中主要是由石墨电极与基体反应生成的TiC相组成。

The case depth is the most important quality index of carburized materials, and it is usually checked by selective examination. This traditional method is inefficient and low reliability.

渗碳层深度是衡量渗碳质量的主要技术指标之一，传统的渗碳层深度检测方法是对大批产品采取抽样检查，不仅检测效率低，可靠性差，而且检测时需破坏样品。

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。