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In this scheme, the description of unitary evolution and quantum measurement is unified and the quantum control operation is represented by probability state transition. The algorithm works as follows. At first a measurement is applied on the system. If the state after collapse is not the desired eigenstate, then system evolution will go on. After a period of time, the system is measured again. The process will go on like this until we get the desired eigenstate by measurement. Finally the system is driven to the target state with admissible control as before.

4把本征态能控性概念进一步向前发展，提出了概率能控性的概念，将幺正演化和量子测量这两种量子控制手段统一的用概率状态转移来描述，并针对一类特殊的本征态能控的系统，提出了幺正演化和测量交替进行的量子反馈控制策略：如果单步测量所得到的本征态不是期望的本征态，则让系统以这一本征态作为新的初态进行下一步的幺正演化，然后在适当的时候再次测量，让系统塌缩到某一本征态，如此重复进行，直到达到期望的目标态为止。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

Advancer's methods after either a direct-or reopening-position one-notrump overcall are the same as responder's after a one-notrump opening.

无论我方是在直接位置或平衡位置插叫1NT，其回答方式都与我方开叫1NT时相同。

Since its inception, always implement the "quality win the trust of users, in good faith to win market" business philosophy, and we focus on a variety of customer feedback information and valuable advice, pay close attention to internal management, and strengthen after-sales service; constantly improve the product quality system, and in the northeast, north, east and south China areas such as the establishment of after-sales service centers; we have done by "access to the essence of constant innovation, perfect" business approach, and actively participate in market competition, and strive to expand the market; Products are sold apart from the domestic, and some have been exported to Southeast Asia, the Middle East, Europe and the United States and other overseas areas, and has achieved acclaim.

公司自创办以来，始终贯彻"以质量取信用户，以诚信赢得市场"的经营理念，同时我们注重客户的各种反馈信息和宝贵意见，狠抓内部管理，强化售后服务；不断完善产品质量体系，并在东北、华北、华东、华南等地区设立了售后服务中心；我们秉乘"取阅精华，不断创新，尽善尽美"的企业方针，积极参与市场竞争，努力拓展市场；现产品除了畅销国内，部分已经出口到东南亚、中东、欧美等海外地区，并取得了好评。

After a year's training he can speak English after a fashion.

经过一年的培训，他勉强能说英语了。

He did, after all, fashion a famous character after me.

他毕竟为我创造了一个有名的角色。

After a little: after a short period of time.

经过一段很短的时间

You can review and change the message after the message when you make the information submitted, you must be a change in your information in a timely manner after the update.

您可以在留言后审核及更改您在进行留言时所提交的资料，您必须在您的资料发生变更后及时进行更新。

This effect was observed after the first experimental year, but not after the second year.

这种效果观察试验后，今年第一次，但不是以后的第二年。

They buy mortgages from banks, after, and other derivative products after binding to the form of securities sold to investors around the world.

它们从银行购买房贷，经过和其它衍生金融产品捆绑之后，以证券的形式出售给世界各地的投资者。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。