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This research sets up a four-stroke unthrottled engine model equipped with electromagnetic valves, In this research, we analyses the influence on the engine volumetric efficiency, house power, torque and fuel comsumption by changing the opening and closing timing of the intake valves when the engine rotates in low, medium and high speed.

本研究建立配有电磁式气阀的四行程多缸无节流阀引擎动态模型，分析引擎在低、中、高转速下，改变进气阀开闭正时对引擎容积效率、马力、扭力以及燃油消耗率的影响。

2The anterior cutereous branches of the obturator artery penetrate deepfascia of thigh and epimysium of the adductor muscles closing against the lower rami of pubisor at its outer margin.Pudendal-thigh skin flap pedicled on it may be elevated to repairrectovaginal fistula or small skin defects of perineum.As its piercing point is much higher andthe location of pedicle is more fixed because of restriction of pubic rami,it is not suited toreconstruct new vagina.Moreover,it is not appropriate naming the obturator aretry(or themedial femoral circumflex artery)the pudendal-thigh artery.

闭孔动脉前皮支紧邻耻骨下支或于其外侧缘，穿大腿深筋膜和内收肌肌膜浅出，以之为蒂可以形成皮下蒂阴股沟岛状皮瓣，用于阴道直肠瘘或会阴部较小皮肤缺损的修复，但由于闭孔动静脉前皮支浅出点位置较高，并且由于耻骨下支的阻挡和限制，致使血管蒂的位置较为固定，以之为蒂形成的阴股沟皮瓣不适宜用于阴道再造；另外，将闭孔动脉命名为阴股沟动脉，也有欠妥帖。

As the distance between epiphysis and metaphysis is relatively close, it can prevent the contour from closing toward the edge of epiphyseal structure which has been divided in the first step, to set a perpendicular to the x-axis of region of interest in the segmentation process.

由于骨骺和干骺相离较近，在分割过程中设定一个垂直于兴趣区域x轴的直线，防止轮廓向着第一步中已经分割好的干骺骨结构边缘靠近。

One of Britain's best known private schools Eton is closing for a week because of swine flu.

由于猪流感，英国最著名的私立学校之一Eton将关闭一周。

The instrument software has the function of demonstration of basic knowledge of Digital Image Processing, i.e., it performs the functions of real-time collection and images saving, color change (brightness, binarization, RGB separation etc.), geometrical transform, edge detection (Robert arithmetic operator, Sobel arithmetic operator, Prewitt arithmetic operator, LOG arithmetic operator, Canny arithmetic operator etc.), gray-scale image enhancement (histogram equalization, averaging filtering, median filtering), and binary mathematical morphology management (erosion, dilation, opening, closing, objects marking, Euler number calculation).

该测试仪的软件部分包含数字图像处理课程所涉及的一些基础知识的演示，具体包括图像的实时采集与保存、颜色变换(灰度化、二值化、R、G、B颜色分量的分离等)、几何变换、边缘检测(Robert、Sobel、Prewitt、LOG、Canny)、灰度图像增强(直方图均衡化、均值滤波、中值滤波等)、二值图像操作(腐蚀、膨胀、开启、闭合、对象标注、欧拉数计算)等功能。

The results indicated that the treatment of irradiation restrained the growth and differentiation of protocorm, especially to roots.The LD50 is 67.23Gy, because the protocorm is a integrate embryoids and higher tolerance was found. Ploidy analysis showed that most of aberrant seedlings go with the change of DNA and they were not euploid. When the plants trearted by irradiation, some of aberrant seedlings appeared stem forfication, and leaves appeared chlorophyll-deficient or green-white.,probably due to some genes' expression or closing.

结果表明：辐照处理对种胚原球茎的生长和分化有抑制作用，尤其是对根的抑制更为明显；由于种胚原球茎的完整性好，耐受性强，其辐照半致死剂量(LD50)为67.23Gy；流式细胞分析表明，大多数外部形态发生改变的植株其细胞内DNA的倍性发生了改变，出现相当多的非整倍体；此外，辐照产生的变异苗出现茎分叉、叶片缺绿或白绿相间等现象，可能是由于某些基因的表达与关闭引起的。

I love every square inch of it. But I can feel the edges closing in on me.

我爱这儿的每一存地方，但感觉到已快近边缘了。

To hold many times of intra-university activities, participated the training of NLP potential excitation program outside university, participated many times of community activities such as Cultural Festival open and closing ceremonies.

尤其在大三期间，设计和组织过教师节感恩文艺晚会、迎圣诞大型文艺晚会、大庆石油学院大学生创业大赛等多次校、院级活动。

During in the university I tempered myself actively in the cadre team, served as the counselor of No.3 Primary School of Daqing City Organs,cooperated with Daqing KangshifuCo.,Ltd. to hold many times of intra-university activities, participated the training of NLP potential excitation program outside university, participated many times of community activities such as Cultural Festival open and closing ceremonies.

在大学期间曾经在学生干部队伍里积极锻炼自己，曾担任过大庆市机关三小校外辅导员、曾与大庆康师傅股份有限公司多次合作举办校内活动，参加过校外NLP潜能激发培训、参与过多次经济管理学院社团文化节开幕式和闭幕式以及期间的多次社团活动。

Opening and closing , and rotation of the Exhaust Valve are normal.

排气阀的开关和旋转正常。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。