低渗的

Combined with the percolation theory of low permeability oil reservoirs,we derived the function of det...

结合低渗透油藏渗流理论得到了低渗透油藏确定极限技术井距的公式，可为低渗透油田开发确定合理井网密度提供理论依据。

It is revealed by the saturated single liquid seepage experiment performed by FDES-641 triaxial system that the movement of low speed seepage in low permeability media departs from the law of Darcy, meanwhile the curve of seepage flow would not pass through the origin of coordinates.

本论文作为国家自然科学基金资助项目"低渗透弱胶结岩石非线性渗流机理研究"的一个组成部分，通过对低渗透岩石系列渗流实验结果进行深入研讨并结合数值分析的方法，对该课题开展了研究。

The research analysed the current status and pollution treatment research review from municipal refuse output, waste physical component, hazards, heavy metal pollution. On the basis of overall understand of current treatment situation about main municipal refuse landfill site of Fujian province. By the simulated test, utilizing 7 kinds of physical adsorbents (zeolite, incineration ashes, slag, plant ash, charcoal, ochre, active carbon), 4 kinds of chemical flocculant FeSO_4, AlCl_3, FeCl_3, Al_2(SO_4_3, and 3 kinds of hyclrophytes, we carried through the pollution removing study of heavy metal in landfill leachate and discussed removing effect of different physical adsorbents, chemical flocculant and hyclrophytes.

并在对福建省主要城市生活垃圾的处理现状全面了解基础上，通过室内模拟试验，分别利用7种物理吸附剂(沸石、焚烧灰、炉灰、草木灰、木炭、赭石、活性炭)、4种化学絮凝剂FeSO_4、AlCl_3、FeCl_3、 Al_2(SO_4_3和3种水生植物进行垃圾渗滤液中重金属的污染去除研究，比较不同物理吸附剂、化学絮凝剂和水生植物对垃圾渗滤液重金属污染的去除效果，试图从中筛选出治理成本低和治理效果好的城市垃圾渗滤液重金属污染修复技术，供南方城市垃圾处理场推广应用。

The heat treatment technology of carbo- nitriding of steel has the characteristic of lower treatment temperature and direct quenching.

钢的碳氮共渗热处理工艺具有共渗温度低、直接淬火等特点。

Especially, it is found that there exists three types of relative permeability of water such as concave, convex to the water saturation ax and the reversed "S" pattern. The super-low permeability reservoir is sensitive to pressure, apparent with millipore undersaturation and water blocks. In this study, a new concept of irriducible undersaturation is brought up. And a new mode to describle the process of imbibition dynamics is used to reveal and confirm the mechanism of pinhole enveloping macropore as following: pendular ring of wetting phase gathers→it fills throat→it truncates nonwejting phase . The expression of pressure distribution and the equation of oil production are deduced under conditions of non-darcy linear seepage and non-linear seepage.

尤其发现水相相对渗透率曲线存在凹向、凸向含水饱和度轴及反S形三种形式；特低渗透储层的压力敏感性强，微孔隙的欠饱和及水锁效应显著，本文研究中提出欠束缚水饱和度的概念，引用一种描述渗吸动态即湿相液环聚集→充填喉道→截断非湿相的演化过程的新方法，更深刻地揭示和证明了&小孔包围大孔&机理；推导出了非达西线性渗流和非线性渗流条件下的压力分布表达式和油井产量方程。

The aluminizing velocity is fast,the aluminizing layer is thick and has good oxidation resistance when the carbon content of steel is low.

含碳量较低的钢有较快的渗速，较深的渗层，而且渗层有较高的抗氧化性能和耐腐蚀性能。

The effects of ion implanting W and carbonizing on the microstructure and surface performance of low carbon structural steel were investigated.

研究了离子注渗W和渗碳处理对低碳结构钢显微组织、表面性能的影响。

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。

The difficulty of leachate treatment is not only the organic pollutants of high concentration in the early leachate, but also the high ammonium concentration and low C/N ratio of the old leachates.

渗滤液处理的难点不仅是早期渗滤液含有高浓度的有机污染物，而更重要的是晚期渗滤液含有高浓度的氨氮及其相应的低碳／氮比的水质特点。

The nitrided layer formed on the surface of stainless steel consists of a nitrogen supersaturated austenite which is maintained to very high nitrogen concentrations and is of high hardness and good corrosion resistance.

与一般离子渗氮不同的是，这些新方法是在真空度较高、温度较低的条件下进行渗氮，可以充分地利用离子的能量提高渗氮效率。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。