两层的

The unsmoothed characteristics of some living beings in soil have wear reduction and wear resistance function . The research benefits the revelation that a tungsten carbide reinforced Cu-base alloy wear-resistant composite coating was produced on mild steel by spark plasma sintering.Under the condition of two bodies abrasive wear ,the coating with the structure that hight hardness and good wear resistance WC particles embedding in tough fine Cu-base alloy matrix resist the abrasion wear and manifest the good wear reduction and wear resistance properties that the unsmoothed bodysurface of some living beings in soil have.

本研究受到某些土壤动物体表非光滑几何特征具有减磨、耐磨特性的启示，应用放电等离子烧结工艺，选取具有优良塑性的Cu基合金作为复合层基体，硬质点WC颗粒作为增强相，在碳钢表面形成WC\ Cu基合金耐磨复合层，在两体静载荷磨粒磨损条件下，高硬度、耐磨WC颗粒镶嵌在高塑性的Cu基合金基体中，共同抵抗磨粒的磨削，表现出某些土壤动物体表非光滑几何特征所具备的优良减磨、耐磨特性。

This sdudy has three parts. Firstly, It analyses the meaning of enterprise informationization management foundation and the relations among information flow, capital flow, substance flow and business flow. Then it catchs the key factors inflecting the foundation on the longitude: information management technology and action.

本文通过分析企业信息化内涵以及企业内部信息流与资金流、物流、业务流的内在关系，将影响企业信息化管理基础的要素划分为管理行为和管理技术两类；再将两类要素按照企业信息流模型划分为三层，形成二维因素集。

Firstly, this article described this inosculating trend and correlative technology.

然后本文对其中两项数据链路层技术，即IP over SDH using LAPS和Ethernet over SDH技术做了详细的阐述，分析说明了这两项技术的优势与不足。

The study aims at the performance of a proton exchange membrane fuel cell with interdigitated flow field ,its influencing factors and feasible ways to improve it.

为研究交指流场质子交换膜燃料电池的输出性能，分析影响其性能的因素，寻找改善其性能的可行措施，探讨了使用交指流场流道的必要性和优越性，建立了包括质子交换膜燃料电池阴极/阳极侧流道、扩散层和催化层以及质子交换膜在内的完整的稳态、三维、两相数学模型。

The study aims at the performance of a proton exchange membrane fuel cell with interdigitated flow field, its influencing factors and feasible ways to improve it. The necessity and advantages of using interdigitated flow field were introduced. A three-dimensional, two-phase and steady-state numerical model was developed. The computational domain of the model consists of the flow channels, gas diffusion layers and catalyst layers in both anode and cathode sides and the PEM in PEM fuel cell.

为研究交指流场质子交换膜燃料电池的输出性能，分析影响其性能的因素，寻找改善其性能的可行措施，探讨了使用交指流场流道的必要性和优越性，建立了包括质子交换膜燃料电池阴极／阳极侧流道、扩散层和催化层以及质子交换膜在内的完整的稳态、三维、两相数学模型。

Friends of Grace paper products company nanshan existing tri-color, two sets of two-color watermark machine production lines, production machinery configured carton including Taiwan detachable three-color watermark machine, MY --- 2500-type rotary slotted angle cutter, FY ---2500 points±paper type pressure-ray machine, ML --- 1300-type die-cutting machine, DX --- 1300 nail box machines that can contract a variety of specifications of high, middle and low-grade, single, double corrugated boxes, carton manufacturing, at present our factory has the production of 20 million square meters in three of five criteria for corrugated box production capacity, 50,000 cartons per day of production scale.

友宏公司南山纸品厂现有三色、双色水印机两套生产线，配置的纸箱生产机械包括台湾可分离式三色水印机、MY---2500型轮转开槽切角机、FY---2500型薄刀分纸压线机、ML---1300型模切机、DX---1300钉箱机等设备，能承揽各种规格的高、中、低档，单、双瓦楞纸箱、纸盒的制造，目前我厂已具备年生产2000万平方米三层、五层标准瓦楞纸箱的生产能力，每日5万只纸箱的生产规模。

A drain diffusion layer connected to an output end of the internal circuit is formed in one of two diffusion regions of the surface of the semiconductor substrate that are defined by the gate electrode, and a source diffusion layer grounded is formed in the other region.

与内电路输出端相连的漏扩散层形成在由栅电极确定的半导体基片表面的两扩散区之一的区内，而接地的源扩散层形成在另一区内。

The production line for both three layer PE pipe and epoxy powder inner anticorrosion pipe came from the reformation of an original production line of three layer PE pipe. The main problems to have been solved are as follows, convert the conventional spray gun deflector into two parts of diversion nozzle and gun wick to suit for different pipe diameters; adopt two stage retrieval equipment to increase powder retrieval rate and improve work environment; enlarge the calibres of gas jet and Venturi pump jet to increase powder output 20% above to ensure the spry coating thickness; design gun pushing device to raise automatic production level.

三层PE管和环氧粉末内防腐管兼容生产线是在三层PE管生产线的基础上改造而成的，主要解决了如下技术问题：将常规使用的喷枪导流体改成导流嘴和枪芯两部分，以适应喷涂不同直径钢管的需要；采用双级回收装置，提高粉末回收率，改善作业环境；加大一次气喷嘴和文丘里泵喷嘴的口径，使出粉量增加20%以上，从而保证涂层喷涂的厚度；设计推枪装置，提高生产的自动化程度。

Usage: polish the floor with it after the sub-polish, and wait 40 minutes until it dries, then repaint it two or three times more.(Every painting should be done when the former one dries). Polishing times depends on the floor materials and the requirements for maintenance. Usually two or three times can achieve a good gloss.

使用方法：在上过底蜡的地面，用本面蜡涂于地面，经40分钟干燥后，再重复涂两至三遍（每涂一遍彻底干后方可重涂下一层）视地面材料及保养要求而定所打面蜡之遍数，一般两至三遍即可获得水晶般良好的光泽度。

No US-pin plastic treatment therapy, a comprehensive alternative to traditional plastic injection of the United States (with the needle and micro-needle) is efficient, non-invasive and safe,"mesoderm into beauty therapy" is the latest technology of water use and water channel protein electrophoresis principle of development Note the infiltration hole electric technology to non-needle injection principle, the use of "point to a plane," AMD permeation technology in skin electroporation Act under the influence of pulsed current stimulation, so that pores have a physical reaction to the rapid spread in two seconds 650-800 of fine pores, forming an instant electronic delivery channels of nutrition, nutrition Note dialysis therapy immediately with electrophoresis, soft laser stimulation and ice, etc., in the most secure and fast, the skin will be required for nutritional products , 99% transmitted to the basal cells, and can be stored as long as 72 hours, the skin smooth and more compact, creating a perfect Beautiful Skin.

无针美塑治疗疗法，是全面替代传统注射美塑的高效、无创，安全的&中胚层导入美容疗法&，是运用最新技术水电泳和水通道蛋白原理研制出的电孔注渗技术，以无针注射原理，采用&点到面&超微渗透技术，其电穿孔法令肌肤在脉冲电流刺激影响下，使毛孔产生物理反应，在两秒内迅速张开650-800个微细毛孔，瞬间形成电子营养输送通道，营养注渗疗法随即展开，配合电泳、柔激光和冰封等刺激作用，在最安全和快速的情况下，将皮肤所需的营养产品， 99%输送到基底层细胞，并可储存72小时之久，令肌肤更紧致柔滑，缔造无瑕美肌。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。