查询词典 level curve

Air permeability of field soil was obtained k1=4.8446×10^(-12)m^2 by soil column method. Meanwhile, relative permeability curve of air-water was gained by biphase flowing experiment. During experiment period, average of soil water content was 0.2689g and pH value was 7.0-8.5. The quantity of aboriginal animalcule went down sharply after pouring contamination into the ground and then rose gradually to its original level which was 10^7 (unit g1dry soil).

采用土柱法测得现场土壤的空气有效渗透率为k1=4.8446×10^(-12)平方公尺，通过气液两相流动试验得到气－液相对渗透率曲线；试验期间土壤平均含水量为0.2689g，pH值在7.0-8.5之间；微生物含量在注入污染物及营养盐后先下降后回升，驯化后期细菌密度达10^7（个g^(-1)干土）数量级。

Unique feature: the gear uses has the international the 80s advanced level new technical -- double circular arc sine curve tooth.

齿轮采用具有国际八十年代先进水平的新技术——双圆弧正弦曲线齿型。

With respect to phonetics, Distinctive Features for the phonetic syncopation of spatial information are extracted based on Bertin's retinal variables. The importance of geographic reality, cognitive laws and geometric laws in the syncopation is pointed out following the thorough inspection of the physical characteristics of spatial information and a phonetic hierarchy of phoneme、 phoneme combination is proposed after the summarization of different methods of syncopation in Psychology, Pattern Recognition, Mathematic Morphology and Cartography, which provides linguistic interpretation for cartographic symbol design and understanding. With respect to the property that map symbol is represented as the combination of attribute and geometry in digital form of spatial information, suprasegmental phoneme as unit is proposed which deals with the high level phonetic units and their structure with the bend of curve and the simple area of complex area as primitive.

在语音结构方面，基于Bertin的视觉变量，提取了产生空间信息语音切分的区别特征；对空间信息的物理特征进行了详尽分析，指出了地理真实、认知规律和几何规律在语音切分中的重要作用；在总结心理学、模式识别、数学形态学和地图学等相关切分理论的基础上，提出了空间信息音位系统以及音位组合规律，为地图符号设计与理解提供了语言学解释；针对地图符号通常在空间信息中表现为属性和形态相结合的特点，提出在超音段音位层次上重点关注以线切分单元——弯曲和复杂面切分单元——弯曲构成的简单面为基本元素的语音高级层次及其结构。

The proposed method could not only efficiently tell between the inward and outward region of the closed curve or surface, but also solve the numerical stability problems of other methods. These superiorities have a significant impact in improving the computational efficiency and stability of level set methods.

所提出的算法能够区分任意形状的闭合曲线或曲面的内外部，改进了以往初始化算法的数值不稳定缺陷，从而使水平集方法的计算效率和稳定性有了显著的提高。

［Objective］To sum up the experience of wearing the halo pelvic and level traction costoplasty to treat 35 cases of severe scoliosis combined with collapsed chest.［Methods］When scoliosis of patients were corrected to a certain degree after three weeks of halo pelvic distraction, the most serious collapsed ribs of concave side of the curve underwent a transverse incision the cross ribs. A special rib bender was used to bend the exposed 3 to 6 ribs. The bent ribs were pulled up by double-stranded 10# thick silk which was extended out through the skin and fixed in the upright post of the instrument of Halo pelvic distraction with rubber membranes.［Results］Thirty-three in 35 patients underwent costoplasty.

［目的］介绍35例重度脊柱侧弯合并严重胸廓塌陷的病例，在颅盆牵引的过程中，同时采用肋骨成形术加水平牵引治疗胸廓塌陷［方法］颅盆牵引3周后，脊柱侧弯矫正到定程度时，在侧弯凹侧肋骨塌陷最重的部位，与肋骨交叉作横切口，暴露3～6条肋骨，用特制的肋骨折弯器将肋骨折弯变圆，用10号双股粗丝线将每条肋骨提起，自皮肤穿出通过橡皮膜在颅盆装置的立柱上作牵引。

The influence of the strontium content and holding time on the cooling curve of ZL104 aluminum alloy was studied using a self-regulating thermal analysis system.The relationship of modification level and △TEG(the eutectic temperature difference between modified and unmodified alloy) was established.

利用自主开发的铝合金热分析系统，研究了Sr加入量、变质后保温时间对ZL104合金冷却曲线的影响，建立了变质等级与变质前后共晶温度的降低值△TEG之间的对应关系。

We calculated the average equivalent sound level and the detectable rate of workers hearing loss and made variance analysis,correlation analysis and fitted curve between them.

结果 听损检出率随平均等效声级的增加而呈明显的增加趋势，平均等效声级与噪声作业人员的听损检出率呈密切的指数正相关关系(相关系数r为 0 812 45 )。

The results show, it have not so much difference of aerodynamic characteristic between titling train negotiating curve and traveling on level track under the conditions of no crosswind.

结果表明，在无侧向风作用的情况下，列车过曲线的空气动力学特征和直线上相似。

And it is also similar of stability of overturning and derailing between titling train negotiating curve and traveling on level track under the effect of not so big crosswind.

在侧向风速较小的情况下，列车过曲线时，空气对车辆倾覆稳定性和脱轨稳定性的影响与直线路上相似。

And then, the theory of curve evolution, how to solve the PDEs model based on level set method and its calculation methods are expatiated.

其次详细介绍了曲线演化理论、偏微分方程模型的水平集方法求解以及数值计算方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。