查询词典 unknown background

The unknown is greater than the known; the known is but as a barque on the ocean of the unknown.

未知比已知广大得多。已知只是未知海洋上的小帆船。

We tend/are inclined to be afraid of the unknown/what is unknown to us.

这也是一个典型的翻译中由概念向命题转化的例子。

Because the uncertainty of this class of system is bounded by a linear function of the norm of the delayed states with unknown bounds, an adaptive update law is proposed to estimate the square of these unknown bounds.

论证了鲁棒自适应控制器存在的条件，并给出了能适应未知参数变化且使得最终闭环系统状态一致最终有界的鲁棒控制律的设计方法。

From equations eliminated some unknown function and its derivative, are contained only one unknown function with constant coefficient of linear differential equations.

从方程组中消去一些未知函数及其各阶导数，得到只含有一个未知函数的高阶常系数线性微分方程 9。

For detecting the vibration frequency the dynamic systems, and using topology contravariant functor the unknown space was mapped to known space,the vibration frequency of unknown space will be investigated by the contravariant functor.

为了分析动力系统振动频率的瞬变性，采用拓扑反变的理论把未知的动力系统空间映射到已知的空间中，通过拓扑反变算子研究未知的空间频率的瞬变性。

Taking the unknown coordinate in curved surface and curve as design variables, the equation of curved surface as constrained condition, and the distance between unknown coordinate as objective function, optimization is proposed to minimize the distance between curved surface and curve.

建立以曲面、曲线上未知，点坐标设计变量，以曲面和曲线方程为约束条件，以曲线和曲面距离为目标函数的约束优化方法来精确地确定曲面和曲线之间最短距离，同时确定获得最短距离对应的坐标点。

By re-constructing the system, the residual error dynamic characteristics of unknown input and fault signals including unknown disturbances and modelling error are obtained. The energy norm indexes of disturbance and fault signals of residual error are selected separately to reflect the restraint of disturbance and the sensitivity of faults, and the design of fault detection observer is described as an optimization problem.

通过对系统进行重构，获取了包括未知扰动、建模误差等未知输入信号和故障信号的残差动态特性，分别选取残差的扰动信号和故障信号的能量范数指标来体现其对扰动的抑制作用和对故障的灵敏性，并将故障检测观测器的设计描述为一个优化问题。

This steam temperature did not calculate too high, this time the human new outer space exposure suit already had the long time to resist 3000 degrees high temperature abilities, as for the steam formidable pressure also insufficient was worry, only was in this steam the unknown material whether had the danger, extremely anxious and puzzled, was good in them is the direct impact outer space, and is flung fast to the planetoid after death, otherwise density too Gao Huochang the time contact definitely could have some kind of unknown event.

这蒸汽的温度不算太高，此时人类新型太空防护服已经具备长时间抵御3000度高温的能力，至于蒸汽的强大压力也不足为虑，只是这蒸汽中未知物质是否具有危险，十分令人担忧和困惑，好在它们是直冲外层空间，并被快速地甩向小行星的身后，否则浓度太高或长时间接触肯定会发生某种未知的事件。

The transient air gap magnetic fields under different conditions are also calculated and analyzed. The novel finite element method directly using magnetic induction as unknown variable has many advantage. It is analyzed theoretically in detail. Nonlinear eddy current field equations and finite element equations using magnetic induction as unknown variable are developed.

直线电机的磁场是一非均匀、非线性的涡流场，文中对非均匀磁场及材料的非线性进行了分析，提出了相应的解决办法，采用以向量磁位为求解量的传统有限元法，对不同合闸角下筒式复合次级圆筒型直线感应电机的瞬态特性进行了计算与试验分析，对不同条件下瞬态气隙磁场进行了研究。

The main purpose of this study which is taking linear equation with one unknown variable as a subject was to investigate the effects of two different teaching ways: Modeling Teaching and General Teaching on solving linear equation with one unknown variable and applied problems.

本电子全文仅授权使用者为学术研究之目的，进行个人非营利性质之检索、阅读、列印。请遵守中华民国著作权法之相关规定，切勿任意重制、散布、改作、转贴、播送，以免触法。论文使用权限校内外完全公开

That snake Alaric named Archbishop...

庇护。。。那个毒如蛇蝎的Alaric被命名为大教主。。。

You have done lots of magical things to be amazed at.

你做了很多神奇的事物感到惊讶。