用

According to their uses, there is piping, and thermal equipment, machinery for industrial use, high-pressure vessel, geological drilling, and oil for industrial use, chemicals for industrial and engineering structures, such as using steel pipe.

按其用途分类，有管道用、热工设备用、机械工业用、高压容器用、地质钻探用、石油工业用、化学工业用和工程结构用钢管等。

To save cloth, mom collects a shell of bamboo shoot of the fallen that be blown by wind in oneself Zhu Lin, what go out with millet straw rub is downy, roast hind planish, with 2, carapace of three-layer bamboo shoot is stuck case, use needle and line to plunge into, cut shoe pattern next, do the surface layer of upper with the La Bu that already caught oneself, what do sole with the plain white cloth that he weaves is outer, and the middle-level of upper, sole is to use wear the old cloth that rotted the old clothes that cannot fill again is torn open, paste has an one layer land, after been cut according to shoe, seam good Bian Zi with needlework, this sole make it.

为了节省布料，妈妈就在自家竹林里捡回被风吹落下来的笋壳，用谷草搓去外面的绒毛，烘烤后压平，用二、三层笋壳贴起，用针和线扎起，然后剪成鞋样，用自已染的蓝布做鞋帮的表层，用自己织的白布做鞋底的外层，而鞋帮、鞋底的中层都是用穿烂了不能再补的旧衣服拆的旧布，一层一层地用浆糊粘起，照鞋子剪好后，用针线缝好边子，这鞋底便做成了。

These transfer equations were used to reestablish the entropy transfer equation for the electromagnetic fluid,and further to reconstitute the differential component equations for different forms of exergy and the differential equation for total exergy in the fluid by the definitions of thermal,pressure,chemical,kinetic,potential and electromagnetic forms of exergy.

通过定义热火用、压火用、化学火用、动能火用、势能火用、电磁火用，重新构建了不同形式火用传递的分量方程及其总火用传递方程。

The cells were cultured under the following serum microenvironment. The primary cells of autoserum group were cultured with autoserum, changing the medium with fetal bovine serum after passage. The primary cells of homogeneity foreign serum group were cultured with homogeneity foreign serum, changing the medium with fetal bovine serum after passage. The primary cells of fetal bovine serum group were cultured with fetal bovine serum, and cultured with fetal bovine serum after passage. The primary cells of Dulbecco's modified Eagle's medium group were cultured with serum-free DMEM, changing the medium with fetal bovine serum after passage.

分别以下列血清微环境培养：自身血清组：分离细胞后原代用含大鼠自身血清的培养基培养，传代后换用含胎牛血清的培养基培养；同种异体血清组：分离细胞后原代用含同种异体血清的培养基培养，以后用胎牛血清培养基培养；胎牛血清组：分离后用含胎牛血清培养基培养，以后一直用含胎牛血清培养基培养；DMEM组：分离细胞后原代用不含血清的DMEM培养基培养，传代后换用含胎牛血清的培养基培养。

Briefly, coronal brain sections (100 mm)were cut with a vibratome, postfixed with 4% glutaraldehydein 0.1 mmol/L cacodylate buffer (pH 7.4) for 1 h, andthen with 1% osmium tetroxide in 0.1 mmol/L cacodylatebuffer for 2 h. After rinsing with distilled water, the brainsections were treated with 1% aqueous uranyl acetateovernight, dehydrated in an ascending series of ethanolsto 100%, followed by dry acetone, and then embedded inDurcupan ACM. Ultrathin sections (0.1 mm) were cut andstained with 3% lead citrate and subsequently examinedwith a Zeiss transmission electron microscope (Zeiss Inc.,Thornwood, NY, USA).

简单的说，先用切刀制成100um的冠状脑切片，然后用含有4%戊二醛在0.1 mmol/L的二甲砷酸缓冲液(PH7.4)中固定1小时后，放在含有1%四氧化锇的0.1 mmol/L的二甲砷酸缓冲液中2小时，接着用蒸馏水冲洗后，放在1%的aqueous uranyl acetate中过夜，接下来用梯度酒精(至100%)脱水，然后用丙酮干燥，再用Durcupan ACM包埋，切成0.1um的超薄切片后用3%的lead citrate染色，随后用透射电子显微镜观察。

Pragmatic presupposition determines the choice of information focus and its position in a sentence,organizes the discourse into a coherent whole,concise,clear and smooth,and achieves the expected stylistic effects.in college english teaching,if teachers teach the knowledge about pragmatic presupposition in listening teaching,introduce the frequently-seen patterns of presupposition, increase the presuppositional sensitivity of students to certain words and structures,guide students to use the theory on presuppositional information to make forecasts on base of written listening material,listen purposefully,and get rid of the distraction of the minor and redundant information,the ability of students to obtain major information and linguistic inference will be strengthened and their listening competence will improve remarkably.george yule divided presuppositional triggers into factive presupposition,non-factive presupposition,counter-factive presupposition,existential presupposition,lexical presupposition and structural presupposition.presuppositional triggers are helpful for us to understand the true intention of the speaker or writer.in college english reading teaching,if teachers introduce the discourse organizing function of pragmatic presupposition and the relevant presupposition triggers,and teach students to use these triggers to communicate with the writer,the comprehension competence of students will be greatly enhanced.the essential function of presupposition is to build a framework for the further development of discourse.in college english writing teaching,teachers can use the theory on pragmatic presupposition to construct a handy training program for textual organization,increase the textual coherence, economy and structural perfection of the english writings by students.in college english translation teaching,teachers should focus on developing the pragmatic presuppositional thinking of students,enable them to grasp the presupposed information in source text / speech exactly,understand the original thoroughly,correctly reorganize and reproduce the pragmatic presuppositions in the target language,carry out the functional equivalence in translation and successfully realize the smooth and accurate communication.with the instruction of pragmatic presupposition in college english teaching,the complete understanding and integral acquisition of english and chinese of students will come true.in conclusion,to implement the curriculum requirements for college english teaching promulgated by the ministry of education of china,we should emphasize the instruction of the theory on pragmatic presupposition in college english teaching,carry it through from beginning to end.it's one of the important means to realize the college english teaching reform, improve the effects of college english teaching,strengthenr the practical and integrative language abilities of students,in order to cultivate the compound talents to adapt to the global integration and meet the requirements of the reform and opening in china.

在大学英语教学中，教师将语用预设知识贯穿于听力教学过程中，讲授一些常出现的预设类型，提高学生对一些特定的词语和结构的预设敏感度，引导学生运用预设信息理论对听力文字材料进行预测，有的放矢，排除次要、冗余信息的干扰，增强获取主要信息的能力和语言推理能力，从而提。。。更多高学生的听力理解水平。george yule将预设触发语分为事实预设、非事实预设、反事实预设、存在预设、词汇预设和结构预设，触发语有助于我们在阅读当中理解作者的真正用意。在大学英语阅读教学中，介绍语用预设的语篇组织功能和有关的预设触发语，并利用触发语来与作者进行交流，会极大地提高阅读理解能力。预设的基本功能就是为语篇的进一步发展建立一个框架。利用语用预设理论可以为大学英语写作教学构建一个易于操作的篇章组织训练方法，提高学生英语写作的语篇连贯性，经济性和结构优化。在大学英语翻译教学中，注重培养学生的语用预设思维，准确把握源语的前提信息，透彻理解原文，使语用预设在目的语中正确重组和再现，实现翻译的功能对等，交际的流畅性和准确性，并增强学生对英汉双语的全面性认识和整体性习得。综上所述，为更好地贯彻和实施教育部颁布的《大学英语课程教学要求》，在大学英语教学中重视语用预设理论的传授，使语用预设贯穿于大学英语教学的始终，是实现大学英语教学改革的重要手段，改善大学英语教学效果，增强学生的实用综合语言能力，培养符合全球一体化趋势，适应改革开放要求的复合型人才。

These transfers, instead of utterly perishing from the senior students' language use, turned to become fewer along with the development of their English pragmatic competence and extending of English learning experience. It was also showed that native speakers generally understood and accepted the students' Chinese-derived negative pragmatic transfer in spite of the fact that such transfers were different from their ways of saying things in similar speech situations. At the same time, native speakers displayed a conservative attitude concerning the recommendability of negative pragmatic transfers for classroom teaching.

本研究发现：中国学生的语用负迁移不止Kasper（1992）所说的两种，而是三种，即：语用语言负迁移、社交语用负迁移和语用修辞知识负迁移；这些语用负迁移没有因为学生的英语语用能力的提高和英语学习时间的增长而全部消失，而只是逐步减少；对于这些语用负迁移，美国大学生们大都认为它们不同于本族语者在同样语境下所说的话，它们的意思也大多可以理解和接受，可是感到在教学中不宜向学生推荐使用。

LiWei INC was founded in 1999, integrating scientific research, design, production, operating in one, professional production and sale of Rock Drilling, mining accessories, engineering tools, rock drilling tools, milling machine milling teeth, milling Machine Cutter, road Mixer Cutter, coal mine cut teeth with various types of Shearer with conical teeth, knife-shaped cross-sectional tooth, boring machine with boring tooth, shield knives, metro shield machine shield configuration tools and various types of mining bits, rock drills, anchor drills, rotary drilling engineering cut-off teeth, using rotary drilling rig Rotary Drilling teeth, tooth roadheader, Rotary Drilling teeth, bucket teeth, tooth Block, and a variety of Rock Drilling Bits, including word, cross drill head, the ball tooth drill head, drill sets, drill tail, drill rod and so on.

香港立威刀具有限公司始建于1999年，集科研、设计、生产、经营于一体，专业生产和销售凿岩钎具、矿山配件、工程工具、岩土钻掘工具、铣刨机用铣刨齿、铣刨机刀头、路拌机刀头、煤矿用截齿、各种型号的采煤机用镐形截齿、刀形截齿、掘进机用掘进齿、盾构刀具、地铁盾构机用盾构刀具及各种型号的矿用钻头、岩石钻头、锚杆钻头、工程用旋挖截齿、旋挖钻机用旋挖齿、掘进机截齿、旋挖齿、斗齿、齿座和各种凿岩钎具包括一字钎头、十字钎头、球齿钎头、钎套、钎尾、钎杆等。

The preparative technique of solid lubricant is cold-press sintering method.The micro-structure , friction surface, lubricant transfer film surface of base material was characterized by SEM; XRD was used to do phase analysis. The degrees of crystallinity of pure PTFE under the different conditions of water cooling, air cooling and furnace-varying cooling were made comparison by XRD. The thermal stability of pure PTFE and solid lubricant was analyzed by DSC-TG; The composition and valence state of elements in the surface of carbon fiber ,solid lubricant before and after friction test and lubricant transfer film were characterized by XPS; The frictional property of solid lubricant was tested by pin and disk test rig .

用SEM表征原料微观结构、摩擦表面及润滑转移膜表面形貌：用XRD进行原料物相分析，及比较水冷却、空气冷却、随炉冷却三种工艺条件下的纯聚四氟乙烯树脂的结晶度；用DSC-TG分析纯聚四氟乙烯树脂及固体润滑剂的热稳定性；用XPS表征碳纤维表面、固体润滑剂摩擦前后表面、润滑转移膜表面的元素组成、价态变化；用销盘式摩擦磨损试验机对固体润滑剂进行摩擦性能测试；采用专用的台架模拟试验机对固体润滑剂镶嵌轴承套与钢轴摩擦副间的摩擦磨损性能进行测定；用莱次偏光显微镜测试固体润滑剂的硬度；用材料试验机测试固体润滑剂的抗压强度等。

Products are widely used in lamp cored wire, bromine tungsten, molybdenum using feet, car H Series stent molybdenum rod, pin lights, halogen effective molybdenum wire, molybdenum guide rod, single-ended lamp bracket white molybdenum wire, molybdenum derivative with iodine-tungsten lamp stroke, stent tungsten wire, tungsten rod shape, motorcycle lamp bracket molybdenum wire, molybdenum feet, mercury lamps, metal halide, dysprosium lamp guide molybdenum, tungsten electrode, cutting mold high temperature wire cutting, such as molybdenum wire.

产品广泛用于灯用芯线，溴钨等用钼脚，汽车H系列支架钼杆、灯脚，卤素管用钼丝、钼导杆，单端灯用支架白钼丝，碘钨灯用钼导杆、支架钨丝、定型钨杆，摩托车灯用钼支架丝、钼脚，汞灯、金卤灯、镝灯用钼导杆，钨电极，切割模具用高温线切割钼丝等。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。