未知

The nonlinearities, uncertainties and unknown disturbances, such as second-hand DC motors, vibration effect, variable friction, gear backlash, stick-and-slip and self-made driving circuits, of the proposed platform affect the dynamic behavior very much.

本文提出一神经模糊动模式控制架构并应用於小台控制系统。这个实验平台的非线性、确定性及未知干扰，如：二手的直马达、振动效应、变动的摩擦、齿间隙、平顺运转及自制驱动电，严重影响系统的动态为。

Based on observation point fusion, an algorithm named immune network exploration algorithm was proposed to fast accomplish the exploration task of multi-robot for unknown environment.

提出了一种基于观测点融合的改进免疫网络探测算法，完成多机器人对未知区域的快速、高效的探索任务。

With an abiding interest in futurology, Matt amusingly prefaced his talk with the suggestion that if you ask a bunch of thirtysomething geeks to discuss 'What's next?

带着对未知性的无限兴趣， Matt 打趣地以建议"如果我们和一群30岁左右的怪人讨论'未来会怎样'的话题，你将毫无疑问的得到'在那个时代我们这群怪人都会有一份超级棒的工作'这样的答案"作为他的开场白。

Based on the concept of the prior distribution, the Gamma distribution was introduced as the prior models of the unknown model parameters.

基于共轭先验理论，提出以伽马分布作为未知参数的先验模型，准确估计参数。

In analysis of structure matrix, Gauss elimination method is often used to solve unknown displacement.

结构矩阵分析中，经常利用高斯消元法来求解未知位移，一般认为高斯消元仅为一种数学过程，而实际其包含着深刻的物理意义。

By integral transformation of basic equations, the stress and displacement expressions with unknown coefficients of elastic and viscoelastic materials were obtained in Laplace domain respectively, and introducing dislocation density functions, the singular integral equations were got according to the boundary conditions and interface connection conditions, further adopting Gauss integration and Gauss-Jacobi integration formula, the problem was reduced to algebraic equations, then it can be solved with the method of collocation dots in Laplace domain. Finally, the time response of dynamic stress intensity factor was calculated with the inverse Laplace integral transformation.

采用积分变换方法，得到Laplace域内弹性和粘弹性材料的应力和位移的含未知系数的表达式；引入位错密度函数，并通过边界条件和界面连接条件，导出反映裂纹尖端奇异性的奇异积分方程组，采用Gauss积分，并运用Gauss-Jacobi求积公式化奇异积分方程组为代数方程组，利用配点法进行求解；最后经过Laplace逆变换，求得动态应力强度因子的时间响应。

Packaged within geminate particles, the genomes of geminiviruses are single-stranded circular DNAs that are replicated mainly by a rolling circle mechanism, characteristic to prokaryotes. Previous researches have indicated that geminiviruses can generate various DNA replication forms in bacteria, suggesting that geminiviruses possess the potential to regulate the expression of certain viral genes in prokaryotic systems.

双生病毒在植物细胞中是主要以原核生物形式的rolling circle replication方式做复制，而先前研究指出双生病毒可以在原核系统里进行复制，因此，双生病毒基因体中应具有在原核系统中亦能表现的调控机制，除了已知的基因外，是否有其他未知的基因参与这项机制仍不清楚。

And the drawbacks are the same too, namely lack of QA, unknown or unmonitored processes, a lack of control over problems, delivery and general quality.

和弊端是相同的，也就是缺乏质量保证，未知或受检过程中，缺乏控制的问题，交付和综合素质。

It is proved that arc coordinates of a directed curve cannot be used as ordinary coordinates or generalized coordinate s for the motion of an Appell-Hamel particle without a fixed orbit, but they can be used as quasi coordinates.

证明了弧长坐标 s在轨道未知的 Appell- Ham el质点运动中不能作为普通坐标或广义坐标，但可以作为准坐标，指出文献 [1]中引入弧长 s坐标的做法及"Appell- Ham el质点运动的轨迹是一般螺线"的结论是正确的，但其Appell- Ham el约束是完整约束及在该质点运动中 s坐标是广义坐标的观点是错误的。

In this paper,we have generalized the above method and used it in systems with unknown parame-ters.

在本文中我们将上述方法推广到未知参数的系统。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。