渗

Thickness,and microstructure of the boride layer have been investigated by an Olympus optical microscopy and X-ray diffractorneter.

采用Olympus光学显微镜和X射线衍射分析渗硼层厚度和渗层组织。

Stem corrosion problem is to be paid more attention to the problem of accumulated rich production experience, often by nitriding, boride, chromium, nickel and other surface treatment to improve its corrosion resistance, corrosion resistance and wear abrasion performance.

阀杆防腐问题是被人们所重视的问题，积累了丰富的生产经验，常采用渗氮、渗硼、镀铬、镀镍等表面处理工艺，提高它的耐蚀性，气动控制阀耐蚀性和耐磨擦伤性能。

The contour diagram of the boride layer thickness of the steel 45 boronized with 5%Nd2O3 addition was built according to experimental data.

根据所得数据建立了45钢在添加w（Nd2O3）=5％稀土渗硼时的渗硼层等厚线图。

In this thesis, numerical simulation of wave interaction with submerged porous breakwater is conducted.

本文以波浪和可渗潜堤为研究对象，对波浪与可渗潜堤的相互作用进行了数值模拟。

In this work the influence of surfactants CTAB and SDBS on the surface properties and imbibition for oil wet limestone is investigated at 62℃ by the ways of capillary rise, imbibition, and relative permeabilities curves.

本工作采用毛管上升、渗吸及相对渗透率曲线方法，在62℃下研究了CTAB和SDBS溶液对油湿灰岩表面性质及渗吸行为的影响。

The mathematical model of gas carburization is mathematical description of all kinds of physical and chemical phenomena in the process of carburization.

气体渗碳数学模型是渗碳过程中各种物理、化学现象的数学描述。

ABSTRACT : Carburization characteristics and wear behavior of new type meta-bainitic steel were studied.

摘 要：研究了新型准贝氏体钢渗碳特性及渗层磨损性能。

Carburization characteristics and wear behavior of new type meta bainitic steel were studied.

研究了新型准贝氏体钢渗碳特性及渗层磨损性能。

Based on this result, and combined with mathematical models for describing the quenching process, the temperature, microstructure and stress field in quenching process were simulated by the FDM, the variation of microstructure and stress in quenching process was analyzed, and effect of the carburization on them was also analyzed.

基于渗碳模拟结果，根据描述淬火过程的数学模型，利用有限元法对试样淬火过程的温度场、组织场及应力场进行了数值模拟，分析了淬火过程中组织和内应力变化，及渗碳过程对淬火过程组织及应力变化的影响。

When used carburization and tempering, filling baskets should be designed according to different parts of horizontal

当用于渗碳及回火时，装料筐设计应根据不同工件设计横向和纵向气道，使碳势气氛和热风能均匀通过工件每一点，使工件渗碳层或回火均匀。

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。