不确定

A ship course controller is designed for Norrbin nonlinear ship mathematical model with matching uncertainty. Combining the backstepping algorithm with the nonlinear damping algorithm to design controller, the nonlinear damping is used to cancel the uncertainty. The integral item is introduced in the design to improve the performance of the controller. Now, general ships can only use the electric gyrocompass to measure the course angle, but they have no equipments to measure the angular velocity, so in this article another ship course controller of output feedback is designed for Norrbin nonlinear ship, firstly the angular velocity is estimated by the observer and then the ship course controller is designed.

本文基于含有匹配不确定项的Norrbin非线性船舶数学模型，将backstepping算法和非线性阻尼算法相结合设计船舶航向控制器，利用非线性阻尼来抵消系统的不确定项，同时为了更好地改善系统的性能，在设计过程中引入了积分项；由于目前一般船舶只有电罗经用于测量船舶的航向角，还没有测量船舶航向角速度的设备，因此，针对Norrbin非线性船舶模型设计了一种输出反馈控制器，首先利用观测器对船舶航向角速度进行估计，然后再设计船舶航向控制器。

Therefor, it is meaningful to improve the performance of antiskid braking systems by means of parametric uncertainty nonlinear control theory, and it is the topic of this dissertation.

文中总结了参数不确定非线性系统控制理论的研究成果，特别注意到基于反馈线性化理论的控制方法是参数不确定非线性系统控制理论的一个重要组成部分。

There are three patterns of the establishment of penaltyrange,which are absolutely assured,absolutely dicey and compara-tively assured.

刑罚幅度设置的模式有绝对确定的刑罚幅度、绝对不确定的刑罚幅度和相对确定的刑罚幅度。

Could you please share your coolest riding or trick photos/videos to us?K: For sure , i don't know if the pics i shared to brian are the best of my riding but ... it's me

没问题，虽然我不确定给 Brian 的那些是不是我最潇洒的，但可以确定的是…潇洒的照片都不是替身！

When the uncertainty principle is considered, it is not possible to locate a photon in space more precisely than about one wavelength.

解 译考虑到不确定关系时，一个光子的空间位置不确定度不大于其一个波长。

When one carefully considers this accumulation of data, it begins to seem probable that an archetype in its quiescent, unprojected state has no exactly determinable form but is in itself an indefinite structure which can assume definite forms only in projection.

当一个人仔细考虑起这些累积起来的数据时，就可能会看到存在一个处在静止、未投射状态的原型，没有严格确定的形式，但在它内部一个不确定的结构可以通过投射中的确定形式假设出来。

Centering on these two purposes, this paper sets up the architecture and functional model of Virtual Coordinate Inspecting System , determines its characteristics, determines its working process that from inspection planning、path planning、movement simulation、measurement uncertainty analysis of inspected parameters and assessment of inspectability according to user's demands.

围绕这两个目的，本文首先建立了虚拟坐标测量系统的体系结构和功能模型，确定了虚拟坐标测量系统的特征，确定了根据用户需求进行测量方法设计和路径规划，进而进行测量过程运动仿真、被测参数的测量不确定度分析和可测量性评估这一工作过程。

This CVSNN only learn to know the parameter's variation and unstructural uncertainty instead of robot's inverse dynamic model.

本文的CVSNN不需学习复杂的机器人逆动力学模型，而只要学习参数不确定因素和非结构性不确定因素，具有很强的自适应能力。

This is also a new idea wich is differ from former uncertain reasoning and more valuable for practical applications.

这也是本文不同于以往不确定推理的新构思，使不确定推理更具实际意义。

After all, any reality is just a fact of change – an unconfirmed moment in the slow march of time. The present always surpasses the past, and the future will not care about today.

既确定而又不真实，毕竟任何的现实都是变化中的事实，是漫长的时间中不确定的片刻，现在总是覆盖着过去，未来也不将理会今天。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。