过高的估计

The simulation results show that the vector control system based on this improved scheme has better dynamic and static performance. It solves a lot of problems such as larger error in the MRAS based on the back electromotive force when the motor runs across the zero speed and the instability based on the instantaneous reactive power in the regenerating mode and has high estimating precision.

仿真表明基于该方法的矢量控制系统动静态性能好，能有效解决反电动势模型参考自适应方法在速度过零点辨识误差大以及瞬时无功功率模型参考自适应方法在转速给定为负阶跃时转速不稳定问题，转速估计精度高。

The objective of this study is aimed at the implementation of parallelized numerical quadrature routines. The algorithm we choose for numerical quadrature routines is the so called "Adaptive Romberg Tree integration scheme"(abbr."ARTint") proposed by Lin et. al.[1997]. This numerical quadrature scheme can arrange the function evaluation points adaptively in accordance with characteristic of the trend of variation in integrand function values. When the accuracy of the numerical quadrature value is requested to be increased, a newer and larger set of function evaluation points must be incurred. The main advantage of ARTint method is the inclusion of all function evaluation points used in previous stages. It is this feature of ARTint method that makes it a quadratue scheme with prominent computation efficiency.

本研究在探讨数值积分程式之平行化，所使用的演算法为林聪悟与林佳慧[1997]一书所提出的「Romberg树自动布点数值积分」架构，此一数值积分方法能以适应被积函数值变化情形方式自动安排积分点来进行数值求积计算，在提高阶数以获得更高精度积分值的过程中，此一方法只须再计算新增加积分点的函数值，搭配先前已计算过的函数值的重覆运用即可获得更精确的数值积分估计值，如此将能减少升阶过程中函数求值计算的次数，有效率地完成单重积分的数值计算。

There is a small number of economists who argue that the 2007 surge in oil prices has had more to do with an overestimation of the risks of political chaos in oil producers and outright speculation than with the basics of supply and demand.

有少数争论2007年原油价格起伏的经济学家已经意识到应该更加注意对原油提供国政治混乱带来的风险的过高估计和过于简单直接的推测而不是注意供应与需求的基础。

Whether originating in the desire for an easy life or in overestimation of the enemy's strength, conservatism can only bring losses in the War of Resistance and is harmful to guerrilla warfare and to the base areas themselves.

保守主义不论是由于贪图安逸而发生的，或由于对敌人力量的过高估计而发生的，均将给予抗日战争以损失，对于游击战争及其根据地的本身也是不利的。

Many scientists who study epidemics have long argued that the agency has been overestimating the extent of H.I.V.

相当多的研究疾病的科学家有长期的争论，规划署对HIV的范围估计过高，他们声称国际评估主要是基于大城市的高风险群体

The main difficulty in maintaining the low-flying, right before the target stopped before there are some mountains, trees also more than the flying height, waiting for the alarm, flying low over the tree would die a hurry, here is a pattern even distracted skills tree from the woods and trees around the gap between the wearing, wearing a back end, failed several times, the requirements of high technology is,豁出去later, and is not even a few fighter planes like you play, the beginning fly, warning a short while, and soon the hills, two aircraft from put a red 4 missiles, missile thought more terrible, the result was even easy to flash, I saw a missile fly in front of the explosion really fun, in fact, the missile is a good hide, and more attention after the perspective to observe the missile position, when the missile away from you, almost 100 distance of 100 -200 m,(their estimate of the distance from there anyway) who has risen sharply and optional, you can play to stimulate the rapid decline in almost a sudden sharp rise in the ground, of course, elections are the rapid turn right turn left, air giant slalom, flip aircraft line, multi-练练, the computer is the point of missile小意思, nothing after playing air combat, interesting ah ~~~~ even the highest record was 28 to avoid a meeting, including surface-to-air missiles, the computer told me to fly by the tail I am thrown to the ground the trees the mountains 11 miles or a word and the computer novice and more air play than the simple low wear and more trees to the

难度主要在保持低空飞行，快到目标前有一些高山挡住，树还特别多，飞的比树高，等着报警把，飞的比树低想死着急，这里偶愣是用花样技巧，从树林里树与树的缝隙之间穿了过来，最后又穿了回去，失败几次，要求技术实在是高，后来豁出去了，不就是几架战斗机偶就跟你们玩玩，一开始就高飞，不一会报警了，快到山头， 2架飞机冲过来放了4导弹，原以为导弹多可怕，结果，被偶轻松闪过，看见导弹飞到我前面爆炸真好玩，其实导弹是很好躲的，注意多用后视角，观察导弹位置，当导弹离你差不多100-200米百距离，(自己估计的反正有段距离)可选者急速上升，还可以玩刺激急速下降快到地面时突然急速上升，当然选者急速右转左转，空中大回转，翻转飞机都行，多练练，电脑那点导弹完全是小意思，以后没事耍空战，有意思啊~~~~偶最高纪录是1次避了28枚导弹包括地对空，电脑跟我机尾飞被我甩在地上山上树上海里11次总之新手还是和电脑多玩玩空战比起超低空穿树简单的多的去了

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐