查询词典 minimum density

Order determination is accomplished in two stages, i.e., the AR order is first determined by the minimum eigenvalue of overdetermined instrumental variable product moment and the MA order is then estimated by the minimum eigenvalues of a covariance matrix derived from the observed data.

该方法将ARMA模型的结构辨识分两步进行：首先利用超定辅助变量乘积矩(0IVPM)的最小特征值确定自回归部分的阶，然后利用协方差矩阵的特征值估计滑动平均部分的阶。

Some history: After her daughter was killed by an intoxicated driver, Candy Lightner founded Mothers Against Drunk Driving and successfully lobbied for the 1984 National Minimum Drinking Age Act (the law that's up for reauthorization in 2009), which gave full federal highway funds only to states that set the minimum age to purchase or consume alcohol at 21 years.

看看历史：肯迪·莱特娜的女儿被一个喝醉的司机撞死之后，她成立了&母亲们的反酒后驾车&组织，并成功地说服议员们通过了1984国家最小饮酒年龄法案（这部法案将在2009年重新修订），法案称将把全部的联邦道路基金只给予那些规定最小的买酒或饮酒年龄为21岁的州。

Strip limit minimum rollable gauge and minimum rollable gauge considering productivity are analyzed and derived using new rolling pressure model, work roll surface temperature rise formulae is derived on the basis of mill stand thermal balance. The affecting factors of work roll surface temperature and the influences on the choice of roll size are discussed.

本文从轧机结构设计、力能参数计算、强度设计计算等方面综合论述了辊系参数设计计算的基本理论，在理论上提出了采用考虑粘着摩擦的混合摩擦模型和考虑轧件的弹性变形计算冷轧薄板轧制压力的方法，推导并以冷轧机实测轧制压力验证了轧制压力新模型；应用新的轧制压力模型分析并推导了轧件极限最小可轧厚度和考虑生产率的最小可轧厚度公式；根据工作机座热量平衡原理推导了工作辊温升公式，分析了工作辊温度的影响因素，研究了工作辊温升对轧辊参数选择的影响。

Three years experience, minimum of one year in supervisorial level, minimum of 1 year of hands on service experience.

三年以上吧台工作经验，一年以上主管级工作经验

PID control has been successfully used in many fields such as aviation, spaceflight, missile and other industry control system. The study object in the thesis is missile that flies hedgehopping over sea at minimum altitude. Many interference problem must be solved when missile flies at minimum altitude, otherwise the missile would be dangerous of bumping into the sea under the circumstances of bad weather and wave. The different kinds of interference factors are contradictions with requirements of control system, which can not be solved by PID control.

尽管在航空、航天、导弹以及其它工业控制领域PID控制曾经应用的十分普遍和成功，但对本文所研究的某型超低空掠海飞行的导弹，要实现超低空飞行必须处理好各种干扰问题，否则，在恶劣的气象和海情的条件下便有使导弹与海浪相撞的危险。

Their chief concern is with efficiency, that is , with implanting the greatest number of children ,with a minimum of time, number of facts into the greatest possible number of children, with a minimum of time expense and effort.

他们的主要的关切是做事要有效率。也就是说，用最短的时间，花费最少量的努力，把最大量的事实移植到尽可能多的孩子们心中。

The shortages of typical BP algorithm are that its convergence speed is slow and it possibly mires to local minimum. To solve the former shortage, BP algorithm was modified from several aspects, such as adjusting learning rate adaptively, adding momentum factor, preprocessing training data and modifying network structure, etc.. For the latter shortage, factor γ was introduced to avoid most of local minimum and accelerate the convergence speed.

为解决现有BP算法收敛速度慢的问题，对BP算法进行了改进，采用了动态改变步长、加入动量因子、对训练样本进行预处理以及调整网络结构等措施；针对经典BP算法可能收敛到局部极小点的问题，加入γ因子，可以避免大部分的局部极小值，从而使网络的收敛速度加快。

Utilizing the extremum theory of function to obtain the minimum radius of curvature of theoretical profile, and factors that affecting the minimum radius of curvature were discussed, thus provided theoretical basis for the studies of the continuous contact transmission of swinging movable teethed central gear meshing pair, contact stress and meshing stiffness etc..

利用函数极值理论得到理论廓线的最小曲率半径，讨论了最小曲率半径的影响因素。为摆动活齿中心轮啮合副的连续接触传动、接触应力和啮合刚度等的研究提供了理论基础。

The substance extracted showed some antibiotic activity against Staphylococcus aureus, Bacillus subtil, Escherichia coli, Aspergillus niger, penicillium, the minimum inhibitory concentration was 0.0625, 0.0625, 0.0313, 0.125, 0.25 mg/ml, and minimum bactericidal concentrations was 0.25, 0.125, 0.0313, 0.25, 0.5 mg/ml respectively.

该提取液对金色葡萄球菌、枯草杆菌、大肠杆菌、黑曲霉、青霉都有明显的抑菌效果，最低抑菌浓度分别为：0.062 5，0.062 5，0.031 3，0.15，0.25 mg/ml；最小杀菌浓度为0.25，0.125，0.031 3，0.5，0.25 mg/ml。

Lever Ball Float Steam Traps are not subject to the greatest advantage of pressure, temperature, condensate water flow fluctuations, continuous drainage, water that is exclusive, the Butterfly Valves minimum undercooling of 0 ℃, heating equipment can achieve the best efficiency; Lever Ball Float Steam Traps seat total in the level below, the formation of water seal, no steam leakage; its minimum working pressure 0.01Mpa, the biggest back-pressure rate of ≤ 85%; house with an exhaust device, lever float steam trap uses the most advanced components as the automatic emptying of diaphragm valves, can automatically rule out non-condensing gas, very sensitive, high-quality work and long service life.

杠杆浮球式蒸汽疏水阀的最大优点是不受压力、温度、冷凝水流量波动的影响，连续排水，有水即排，最小过冷度为0℃，能使加热设备达到最佳工作效率；杠杆浮球式蒸汽疏水阀的阀座总处于液位以下，形成水封，无蒸汽泄漏；它的最低工作压力0.01Mpa，最大背压率≤85%；内部带有排气装置，杠杆浮球式蒸汽疏水阀采用最先进的膜盒元件做为自动排空气阀，能自动排除不凝结气体，非常灵敏，工作质量高，使用寿命长。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。