前言

The exordial part mainly introduces the purpose of the topic and main content.

第一部分是前言，主要介绍了论文选题的初衷、论文研究的主要内容。

Heat treatment of steel is a manufacturing process commonly used to transform a relatively inexpensive, low strength and formable steel into a high strength material.

前言 在将价格相对低廉、强度较低的可成型钢转变为高强度材料过程中，钢材热处理是一种普遍采用的制造工艺。

Kirchheim, Preface to his edition of them, Frankfort-on-the-Main, 1851, or, as Ginsberg obtains it, the halakic midrashim Sifra and Sifre, the first of which was divided into nine parts.

传译kirchheim ，前言，以他的版本，其中，法兰克福发表了主， 1851年），或者象金斯伯格得到它， halakic米大示sifra和sifre ，其中第一项是分为九个部分。

Introduction The multiple injury is a multiple parts and multiple organs injury caused by single wound agent, accompanied by hemorrhea, shock, physiologic function disorder, and even a threat to life.

中文摘要：多发伤患者血清TNF-α、IL-6的变化及意义前言多发伤是指由单一致伤因素所造成的多部位、多脏器的严重损伤，常伴有大出血、休克和严重的生理功能紊乱，重者危及生命。

The effects of alloying elements,modification treatment and thermoplast ic deformation on the structure and properties of hypoeutectic white cast iron w as studied and discussed.

0前言 白口铸铁具有一定的热塑性变形能力，其经高温塑性变形，网状碳化物破碎呈孤立块状分布在基体中，使得白口铸铁的韧性得到提高。

Rural urbanization is an approach to solve the present inconsistence of economy in China,and study on its drive-mechanism is a key of expediting course of rural urbanization.

1前言农村城市化是指在农村地域由于经济发展而导致的产业和人口的非农化及其在地域上的集中过程[1]。

The microcapsules with polyurea shell for functionally thermal fluid application were synthesized by interfacial polymerization with isophorone diisocyanate and tetraethylenepentamine as wall material precursor in an emulsion system.

1前言功能热流体是在单相流体中混入其它材料形成的一种集储热与强化传热功能于一身的新型储传热介质[1]。

The incidence of rotational malalignment after femoral nailing has been reported to be at least 20%.

前言：有报道股骨髓内钉固定后旋转畸形的发生率至少20%。

IntroductionBasic fibroblast growth factor is a kind of cell growth factor which has a great effect on proliferation and differentiation to mesodermic cells.

前言 碱性成纤维细胞生长因子是一种对中胚层来源的细胞有强烈促增殖和分化作用的细胞生长因子。

In this paper,the response factors of thermal conductivity detector of monochloromethane and dimethyl ether are estimated and calculated by using group cross section area method,molecular diameter method and homologue linear rule method.

热导校正因子的估算以及在工业氯甲烷生产中的应用李洪宽（山东省化工研究院色谱中心济南250014）关键词气相色谱法，一氯甲烷，热导检测器，校正因子1前言热导检测器定量校正因子的测定和计算是气相色谱热导定量的关键。

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。