最下的
- 与 最下的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The All-Father took the Green Mother as his wife, and from their union sprang Sidhe, firstborn and mightiest of the Elves.
万神之父娶了绿色母亲为妻,并生下了Sidhe——最早最强大的精灵。
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Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.
研究结果表明:基于串励直流电动机(来源:ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场,其各挡下的驱动力特性是一组下凹的曲线,低速恒转矩,高速恒功率;同一行驶速度下所对应高挡驱动力大于低挡驱动力,这是由电机的调速特性决定的;电动拖拉机各个挡位下具有较广的稳定作业速度范围,但是各个挡位之间速度重合的范围较多,说明所用变速箱变速比与电动机匹配不合理;电动拖拉机最大爬坡度达到30%以上,并且各挡爬坡度变化范围较广,作业过程中不需要频繁换挡;影响电动拖拉机连续作业时间的因素较多,其中作业行驶速度和作业负荷影响最为明显,作业负荷越大,连续作业时间就越短,作业速度越快,连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。
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Based on the relationship between the risk-aversion coefficient and the confidence level in VaR, liquidity-adjusted VaR at any confidence level was obtained.
由于投资者风险偏好系数和VaR下的置信概率水平具有一一对应关系,可以通过最优路径集下执行成本的期望和标准差组合曲线来获得不同置信概率下,经过流动性调整后的VaR。
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The optical solution is given under a certain cost of making the smallest variance.
并给出了在一定费用下使得方差最小的最优解。
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Under the exclusive debut of nightmare_yiyo tree work " Dill Pickle " the latest update, banyan tree, is the world's largest network of original works in Chinese, under the banyan tree has a large number of novels, short stories, prose, poetry and other literary types of Chinese ...
榕树下独家首发nightmare_yiyo的作品《莳萝泡菜》最新更新,榕树下是全球最大的中文原创作品网,榕树下拥有大量长篇小说、短篇小说、散文、诗歌等各种文学类型的中文。。。
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This multigrid solver is proven to provide the same accuracy as the finite element solution with respect to energy norm, and the computational complexity is suboptimal.
并证明用共轭梯度法作迭代算子时,该方法可以达到能量模意义下的最优,计算复杂度接近最优。
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The raw data was processed by using axial, coronal and double oblique multi-planar reformation; Images obtained were graded in terms of quality with a 5-point scale(5=excellent, 4=good, 3=fair, 2=poor, and 1=nondiagnostic). In grading image quality at axial MPR, The radiologic specialists focused on the subarcuate fossa, tendon of tensor tympani, facial recess, vestibular aqueduct and pyramidal eminence, In grading image quality at coronal MPR, attention was given to the scute, crista transversa, fenestra cochleae, lateral malleal ligament and snake eyes signature of cranial nerve, In the grading of the image quality at double oblique MPR, the radiologic specialists concentrated on the malleus, incus, stirrup bone, upper bony semicircular and aquaeductus fallopii, and then to implement statistical analysis. In order to choose the minimum tube current values and the maximum pitch that can satisfy the diagnosis request, image quality of axial, coronal and double oblique reformation images was compared with different tube current groups. 15 ears of volunteers were used to test the validity with the scanning parameter. Subsequently noise, MTF and dose length product were measured by phantoms in different tube current and pitch, the parameters obtained were compared and taken into statistics analysis.
扫描模式使用临床常用的颞骨螺旋扫描方式:管电压120 kV,准直宽度20×0.6 mm,视野200 mm,重建矩阵512×512,旋转时间1 s/r,重建层厚0.6 mm,重建间隔0.3 mm,分别改变管电流(380、300、200、160、120和80 mA)和螺距(0.8、1.0和1.2)进行扫描和重建,然后对颞骨进行横断面、冠状面和双斜面多平面重组,于重组后的横断层面图像上选取弓形下窝、鼓膜张肌腱、面神经隐窝、前庭导水管和锥隆起5个解剖结构,冠状面重组图像上选取盾板、横嵴、蜗窗、面神经的蛇眼征和锤骨外侧韧带5个解剖结构,双斜面重组图像上选取锤骨、砧骨、镫骨、上骨半规管和面神经管5个解剖结构,在双盲的情况下由放射学专家分别对各管电流和螺距下扫描的重组图像进行评分,随后进行统计学处理,从中筛选出满足诊断要求的最低管电流值和最大的螺距,分别采用患者25例(15耳)用该管电流值和螺距验证其可行性;然后利用模体分别测试各管电流和螺距下的图像的空间分辨率、噪声及其剂量长度积,并对测试所得参数数值进行比较和统计学处理。
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The world's best-paid and hottest boss has just become a stablemate of the world's highest-profile and top-earning footballer at sportswear giant adidas.
在体育用品巨头阿迪达斯旗下,全世界年薪最高最炙手可热的主教练刚刚与全世界营收最多最吸引眼球的球员成为长期伙伴。
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The sightline control strategy for bad measure precision is developed, and the control methods for vertical direction, approach direction and station keeping are presented.(2)The safe approach velocities are investigated for cuboid, sphere and cone keep out zone.(3)The design method for optimal trajectory under safety constraint is developed. The cone and cuboid keep out zone can be described using line constraint, and then optimal trajectory design can be translated to line programming problem under line constraint.(4) The design strategy of collision avoidance maneuver is discussed, and the collision avoidance scheme is analyzed for V-bar and R-bar approach.The control and trajectory safety in departure phase are investigated.
1提出了测量误差较大时平移靠拢段的视线控制策略,给出了横向、纵向和悬停的控制方法;(2)针对长方体禁区、球形禁区和锥形禁区三种禁区形式,研究了V-bar逼近和任意方向逼近的纵向安全速度计算问题;(3)提出了安全约束下的最优轨迹设计方法,将冲量和有限推力作用下的最优轨迹设计问题转化为线性规划问题,并给出了将锥形和方形安全区域约束转化为标准线性约束的公式;(4)探讨了紧急避撞机动的设计策略,分析了V-bar和R-bar接近的紧急避撞机动方案。
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Moreover, we also give the optimal strategies under the risk-reward framework.
同时,在风险回报竞争分析框架下,进一步讨论了上述问题,得到了给定预期和风险下收益最优的竞争策略。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。