下判断

This paper presented a method for tracing the intersections of two implicit surfaces.the most obvious advantage of this method is: when tracing the intersections, it could quickly get the next tracing point by intersecting this square plane with the two implicit surfaces.

该方法最主要的优点是：在跟踪隐式曲面的交线时，在前一个跟踪交点已经求得的情况下，利用正方形与两个隐式曲面的交点，即可快速有效地求出下一个跟踪点，而不用涉及迭代收敛的判断。

A dyn amical visual analysis is done about a shrouded impeller which is used in a large-scale compressor unit on the basis of visual theory and finite element analysis theory with the combination of SolidWorks and ANSYS . With the vibration characteristics of the impeller under the inertial force, we get to know whether the impeller with given conditions can avoid from the resonant frequency or not and its influence of vibration on system.

以可视化理论、有限元分析理论为基础，结合三维建模软件SolidWorks和有限元分析软件 ANSYS 对某压缩机组用闭式叶轮进行动力学可视化分析，得到其在惯性力作用下的振动特性，可以判断其在给定工况下能否避开共振频率以及评估其振动对系统的影响。

Whatever they borrowed, this pessimism they did not borrow -- not from Greek thought, which was a joyous acknowledgment of and homage to the beautiful and noble in this world, with a studied disregard of the element of sorrow; not from Egyptian thought, which did not allow its elaborate speculations on retribution and judgment in the netherworld to cast a gloom on this present existence, but considered the universe created or evolved under the presiding wisdom of Thoth; not from Iranian thought, which held to the absolute supremacy of Ahura Mazda and only allowed Ahriman a subordinate share in the creation, or rather counter-creation, of the world; not from Indian Brahminic thought, which was Pantheism pure and simple, or God dwelling in, nay identified with, the universe, rather than the Universe existing as the contradictory of God; not, lastly, from Semitic thought, for Semitic religions were strangely reticent as to the fate of the soul after death, and saw all practical wisdom in the worship of Baal, or Marduk, or Assur, or Hadad, that they might live long on this earth.

不管他们借来的，这悲观他们不借钱-而不是从希腊认为，这是一个愉快的承认，并表示敬意的美丽和崇高在这个世界上，一个研究无视元素的悲哀；不是来自埃及认为，这不允许其拟定的报复猜测和判断中的地狱，以投下了阴影对本存在，但认为宇宙的创造或进化的主持下智慧的托提；不是来自伊朗的思想，举行了向绝对优势的胡马自达并只允许Ahriman下属份额的创造，而不是对抗或创造，对世界，而不是从印度Brahminic认为，这是泛神论纯粹和简单，或住在上帝，不查明，宇宙，而不是宇宙现有的矛盾上帝；没有，最后，来自犹太人的思想，为犹太人的宗教有奇怪的沉默，以命运的死亡后的灵魂，看到一切实际智慧的崇拜巴力，或马尔杜克，或亚述，或哈达，他们可能长期生活在地球上。

Mathematical model was set up,on the basis of dynamics formulation,normal expanse of the target interface ,and supposed concrete medium was constringent material.

根据弹体动力学基本方程和假定混凝土为可压缩材料，基于弹靶接触表面处靶体材料的法向膨胀性，对跳弹现象进行理论分析，在合理假设的前提下，建立了跳弹现象的数学模型； 2）针对该模型编制计算机程序，在给定初始入射速度、入射角后可以判断出能否产生跳弹现象，输出产生跳弹现象时所对应的初始侵彻条件，并通过穷举法得出跳弹临界相图，对于斜侵入情况，能计算出弹体在不同侵彻阶段下的运行时间并能绘制出侵彻轨迹，结合现有的试验数据，进行对比分析，二者符合良好，证实了理论分析模型的合理性； 3）开展了跳弹现象的数值模拟研究。

The last chapter "systematic creation of the china' s agriculturedevelopment under the guidance of market" is the key circle that it ismy summary of work and practice in a long time.

第六章《市场导向下的中国农业发展的系统创新》是作者本人长期工作实践的思考与总结。在农业市场化发展的判断下，我对中国农业发展的系统创新进行了分类总结。

Aiming at slope types, features, deformation traits and destroy mechanism of high steep valley slope at Jinping Ⅰ Hydropower Station, and applying monitoring results, a comprehensive prediction design is suggested. In the space, according to the occurrences of unfavorable geological phenomena such as faults F5, f(subscript 42-9) deep fracture SL(subscript 44-1) and lamprophyre vein X, all of them can be treated as the boundary conditions for slides, potential instable blocks of slope on the left abutment are estimated which take on a wedge-shaped sliding model. In the sametime, through using three kinds of joint prediction methods such as statistic models and nonlinear models, judging from the shape of curves of deformation-time and their deformation velocities, it is found that the slope is at the state of slowly creeping to uniform deforming with a deforming velocity of 0.05 mm/d.

针对锦屏一级水电站左岸高边坡的边坡类型、边坡特征、变形特点和变形机制，在监测成果的基础上，对其进行综合预报，空间上判断左岸拱肩边坡由断层F5，f(下标 42-9)、深部裂缝SL(下标 44-1)及煌斑岩脉X互相组合，形成可能边坡失稳块体的边界条件、楔型体滑移失稳模式：时间上采用统计模型及非线性模型多种方法联合预报，根据边坡变形时序曲线的形态及变形速率指出：边坡目前处在缓慢蠕动至匀速变形阶段，变形速率小于0.05mm/d。

Timely diagnose accident character and deal with it under shift supervisor's command and assorting with DCS operator during accident situation.

负责事故状态下的能及时判断事故的性质并在值班长的指挥下配合DCS操作员进行处理。

I could always tell if visitors had called in my absence, either by the bended twigs or grass, or the print of their shoes, and generally of what sex or age or quality they were by some slight trace left, as a flower dropped, or a bunch of grass plucked and thrown away, even as far off as the railroad, half a mile distant, or by the lingering odor of a cigar or pipe.

我总是能够知道我不在家的时候，是不是有人来拜访过，因为我会看到一些弯曲的小枝条或者一些草，或者是一些鞋印。我也能大体判断他们的年龄以及性别，以及他们是什么样的人，从他们的留下的些许痕迹我都可以进行猜测。一朵花被丢下，一束草被拔起，然后丢下，有时候甚至沿着铁轨走出半英里远才扔下。萦绕在周围的香烟的味道。

This paper simulates how the additional flutter signal impacts on oil pressure and actuator output when the dead zone is kept. The proper principle of flutter signal for jam diagnosis is given. Based on the given flutter signal, different jams caused by jam of the EH servo valve under different operating condition are simulated and the output of the oil pressure and actuator are presented. Meanwhile, waving threshold of the oil pressure for jam diagnosis is given. The simulations and analysis prove that the jam fault identification of the EH servo valve based on flutter signal is feasible.

在应用附加振颤信号防止和识别卡涩故障的前提下，确定了振颤信号的选取原则，并采用仿真的方法深入探讨了3种变工况条件下不同卡涩程度对电液转换器油压和油动机输出的影响，提出了油压阈值的卡涩判断标准，论证了基于振颤信号幅值与频率响应监测电液转换器卡涩故障诊断方法的可行性。

The size, layer of origin, border of CISMTs can be distinguished clearly by mEUS, leading to definite diagnosis of SMT. EUS is important in the choice of therapy for SMTs and shoud routinely he performed on all suspected SMTs prior to attempt at removel.

mEUS检查能清楚显示上消化道黏膜下肿瘤的大小，起源层次、生长方向及邻近组织结构关系，较准确地判断肿瘤的性质，进而指导黏膜下肿瘤治疗方案的选择。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。