套作

And the optimize of underbalance drilling fluid is gone on in view of stratum and reservoir geologic characteristic in DaQing oil field, finally a suit of reverse emulsion drilling fluid system fitting DaQing oil field underbalance drilling is established, and it is successfully used and verified in erbalance drilling construction work, the effect is very ideal. Additional the well control technique and commensurable auxiliary technique of underbalance drilling are also systematically analysed, a suit of auxiliary technique and well control scheme of underbalance drilling fitting DaQing oil field zone of negative pressure is established.

本文重点对欠平衡钻井负压值的影响因素及确定方法进行了研究；并针对大庆油田地层及油藏地质特征进行了欠平衡钻井钻井液体系的优选，最终确定了一套适合大庆油田欠平衡钻井的水包油钻井液体系，并成功地在欠平衡钻井施工中得到应用和验证，效果十分理想；另外，本文对欠平衡钻井的井控技术及相应的配套技术也作了系统的分析，确立了一套适合大庆油田地层特点的欠平衡钻井工艺技术配套措施及适合大庆油田地层负压特点的钻井井控技术方案。

Seven types of dimetric drawing and three types of trimetric drawing are introducedby the author with an aim to help hasten the shift of the principles derived from varioustypes of dimetric and trimetric projections from the theoretical approach to the field ofpractical use,and to alleviate the embarrassing situation that only the simple methodscan be resorted to in drawing the pictorial projections by isometric drawing and cabinetdrawing.

为了使各种形式的正二测和正三测从理论研究转向实际应用，克服长期来人们在绘制轴测图时，多数只能采用正等测和斜二测等单调情况，以及提高绘图速度，本文推荐采用七种正二测和三种正三测，并设计一套绘制这十种正轴测的专用工具--轴测多角比例尺。本文提出一套近似作这十种正轴测坐标面上椭圆的方法和数据，使其既简便又准确。

We present an efficient approach for generating the correspondence between two homeomorphic 3D polyhedral models. The user can select vertices on the polyhedra to decompose the boundary of each polyhedron into the same number of morphing patches. Further, the user can specify the feature points on the morphing patch pairs to improve the morph. After the morphing patch pairs are be mapped to 2D regular polygons, they are merged and reconstructed to generate a morph. In the main procedures of our approach, we propose an easy mapping method and a foldover-free warping technique. And we also propose a most efficient merging algorithm. The merging can be completed in O.

我们的对应演算法主要的流程架构是(1)设计一套良好的介面提供给使用者在物体表面上点选圈选点；(2)利用最短路径将圈选点作两两相连，以切割勿体表面；(3)利用Relaxation的方式进行摊平的目的；(4)利用Warping技术以增进使用者的便利性，因此无须圈选太多快patch以精确对齐物体的特徵，同时还提供一套自行避免相交情况的演算法以保证不相交；(5)我们研发出一套极快速的merge演算法，其利用最小轮廓涵盖结构而有效地达成区域搜寻与区域merge，因此在效率上达到O；(6)最后藉由Remesh与3D位置资讯的建立，重构出对应的结果整体而言，透过本论文所研发的对应演算法将不用花费太多的执行时间，因此符合经济效益。

By analyzing the YAWL,it can be found that the enabling of a OR-join task which has another OR-join in its branch will be in advance.

为避免YAWL建模过程中嵌套使用或汇合任务可能出现的提前使能问题，提出了使用异或汇合和与汇合任务将嵌套的或汇合任务进行替换的方法，通过替换有效解决了这一问题，而且结合Reset网，对改进作形式化说明。

When the breaker works, the electric motor revolves passes the blet pulley or the shaft coupling, the drive shaft and the cricular cone department in the heart set comples moves cricles one fixedly does turnd on lathe suspends the movement, thus enable the cricular cone the wall to approach from time to time Leavel the solid attire to put on in the adjustment rolls over the white wall surface, causes the ore to be under the impact unceasingly in the cavity, the extrusion sum the curving functing but realize ore.

破碎机工作时，电动机的旋转通过皮带轮或联轴器、传动轴和圆锥部在偏心套的迫动下绕一固定作旋摆运动，从而使破碎圆锥的破碎壁时而靠近又时而离开固装在调整套上是轧白壁表面，使矿石在破碎腔内不断受到冲击，挤压和弯曲作用而实现矿石的破碎。

1Cr5Mo, 12CrlMoV and 20# are three types of pearlitic heat resistant steel and widely used for high temperature tubes in petro-chemical industry, so their safety assessments are necessary for the sake of operation safety in high temperature cond.

以1Cr5Mo、12Cr1MoV和20钢三种常用作石化装置高温炉管材料的珠光体耐热钢为研究对象，针对其在高温服役中的安全评估问题，在以往工作的基础上，采用数据库和面向对象编程技术研究开发了一套高温管线安全评估决策支持系统，其目的是为大连石化公司数十套装置中加热炉辐射段管线与这三种材料相关的安全评估提供决策支持。

"One way of doing minimally invasive surgery uses cutting trocars — and with that comes scarring, trocar site pain, and hernia formation," explained Dr. McCarus, noting that newer technology has emerged in the form of bladeless trocars with no cutting tips. The bladeless trocar penetrates by separating tissue fibers, thereby producing a smaller fascial defect and allowing repositioning of the tissue at port site after removal of the implement.

McCarus医师指出，切割式的套针是侵犯性最低的手术法之一，但是其所带来的负面效应也不少，包含疤痕、套针插入部位疼痛及疝气等；现在，新的技术所使用的套针不但没有刀刃，也没有锐利的切割尖端；这种无刀刃的套针，以分离纤维组织的方式作穿刺，因此对筋膜的伤害最低，且在手术完成后，所穿刺的组织部位可以自行再定位，不需缝合。

The success that a lot of people say a website is to rely on hard to mix assiduous, I am not denied but the operation that succeeds when us after a website the cost that comes again from the beginning is too big we can use us completely already some websites will do some of relevant couplet, I apply this successful website to because I am main,found my other website namely is to make picture website, what so one my website makes example conclude result website is duplicate, my advocate the picture of the station is to contain a bit make picture website experience friend of watermark to know the picture takes watermark to collect value basically with respect to it doesn't matter so this website basically is affirmation is improper for the friend that invites nudnik to look to want to collect to those, it is enough that every month earns bit of pocket money also be those websites that do not have profit pattern another going law I think consistently stationmaster should not waiting for the sky to drop gold to rely on advertisement is a leg walk either long plan besides current.

很多人都说网站的成功是靠努力和勤奋，我不否认但当我们成功的运营了一个网站后呢从头再来的代价太大了我们完全可以利用我们已有的网站来做些相关联的，我就是运用这个成功的网站来创建我的其他网站因为我主要是作图片网站，所以一我的网站作例子来谈成功网站的复制，我的主站的图片都是带有水印的有一点作图片网站经验的朋友都知道图片带水印基本就没什么收藏价值了所以这个网站主要是让无聊的人看看对于那些想要收藏的朋友来说肯定不合适于是我就做了第二个网站-论坛搞些杂图再把那些整站的套图打包出售这样的盈利模式是成功的论坛的vip会员现在已经达到150人左右带上广告和下载，每个月赚点零用钱是足够的也是那些没有盈利模式的网站的别样走法我一致认为站长不应该等着天上掉金子靠广告是一条腿走路不是长久之计再说了现在的广告联盟越来越垃圾也赚不到钱我们应该两手都要抓两手都要硬。

According to tire valve assembling craftwork, give the math model based on Petri Net and stimulate it, and get the best scheme. All these work afford a precondition and macroscopical guidance for study and making out a good function tire valve assembling equipment.3Have a deep research on the whole structure of the assembly equipment. Great innovation is presented in the design process of 9 suits of transmission machine and 5 sets assembly tongs, so that the structure is compact and the tongs have good fuctions. Especially, the design of tongs for extrusion is perfect as the author think.4 Hardware about control is selected carefully and software is programmed seriously.

故此，按照现有的气门芯装配工艺，运用Petri网对气门芯装配进行了数学建模，并对之进行了装配仿真，得出理想状态下的最优方案，为研制高效的气门芯装配系统提供了必要的前提条件和宏观指导； 3对装配系统的整体结构作了深入研究与规划；对9套送料机构和5套装配夹具进行了大胆的创新设计，使得整套系统结构紧凑，装配夹具性能优良，尤其是镦顶夹具的设计，为作者得意之作； 4控制系统硬件进行了精心选型，软件进行了认真编写。

The machine is characterized by two sets with IMIS system, a set of woven bags with IMIS system, a set of comprehensive mesh belt system, for silk, round wire can be warp.

本机的特点是由两套综带系统，一套编织袋综带系统，一套网眼综带系统，编丝、圆丝均可作经线。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。