乘

17 Class U: Unmanned Aerial Vehicle – An aerodyne with means of propulsion that does not carry a human, and which is designed for scientific research, commercial, governmental or military purposes.

U 级：无人航空载具—一种配备有推进手段，不能乘载人员，且专为科研、商业、政府、或军事用途之重航空器。

We'll go to Beijing by aeroplane .

我们将乘飞机去北京。

I have never flown in an aeroplane .

我从未乘过飞机。

You should ride in an aeroplane to that city.

你应该乘飞机去那座城市。

It is proved that the least squareestimators of linear estimable functions of regression coefficients areadmissible under matrix loss and minimax. The necessary and sufficientexistence conditions are derived for the uniformly minimum riskequivariant estimators of linear estimable functions ofregression coefficients under an affine group and a transitive group oftransformations respectively. It is also proved that there are no UMREestimators ofthe covariance matrix and variance under an affine groupof transformations and quadratic loss functions.

本文证明了回归系数的线性可估函数的最小二乘估计是极小极大的且在矩阵损失函数下是可容许的；还分别在仿射变换群和平移群下导出了存在回归系数的线性可估函数的一致最小风险同变估计的充要条件，并证明了在仿射变换和二次损失下不存在协方差阵和方差的 UMRE 估计。

In this project, we have tackled the robust fault detection and diagnosis problem for affine nonlinear sampled-data systems based on nonlinear H∞ filtering theory,and focused on the design of robust fault dtetction filter. The main contribution of this project is that we (1)present design methods of robust fault estimator for nonlinear discrete-time systems based on least square estimation and linear matrix inequality;(2)improve the bounded real lemma of systems with finite discrete jumps;(3)develop the robust fault detection filters for affine nonlinear sampled-data systems with parameter uncertainties based on the improved bounded real lemma.

本项目以提高故障的正确检测率为目的，以非线性H∞滤波理论为基础，对不确定仿射非线性采样系统的鲁棒故障检测与诊断问题进行了研究，重点研究了不确定仿射非线性采样系统的鲁棒故障检测滤波器设计问题，取得了一些新的成果，主要成果有：(1)基于最小二乘估计和线性矩阵不等式，给出了非线性离散系统的鲁棒故障估计器设计方法；(2)改进了有限跳跃点系统的有界实引理；（3）基于改进的有界实引理，给出了不确定仿射非线性采样系统的鲁棒故障检测滤波器的设计方法。

The designing way of this paper about the forebody and afterbody of aerocraft is based on the wave-rider theory, so design the aerocraft upper and down surface separately, besides keeping the length and thickness of forebody and afterbody constant, to some extent ensure the whole aerocraft design target and avoid the conflict with other disciplines, The flow solver takes use of Euler equations, combining with the technique of the unstructured dynamic meshes.

文中对飞行器前后体设计思路基于高超音速乘波体的思想，将飞行器上下表面进行分离设计，在前后体的长度厚度以及发动机的位置保持不变的条件下，较大程度避免了飞行器整体外形布局的改变，从而一定程度上保证了总体设计的目标，大大缓和了与飞行器其他学科设计时的冲突。

Founded in 2006, Tenneco China Technical Center is focusing on the design and development of emission control products and diesel aftertreatment technology, to serve the growing needs of automotive market as well as commercial vehicle and market in China and the Asia Pacific region.

天纳克中国研发中心于2006年在上海成立。研发中心致力于汽车排气系统以及柴油后处理的设计和研发，服务于中国和亚太区快速增长的乘用车和商用车市场。

Thereafter, introduced the literature styles and narrative features of Agama, Vinaya and Mahayana.

之后，分别介绍四《阿含经》、汉译广律以及大乘佛经的文学风貌和叙事特征。

The Malaysian Buddhist Coordination Committee consists of Malaysian Buddhist Association, Young Buddhist Association of Malaysia, Buddhist Missionary Society Malaysia, Sasana Abhiwurdhi Wardhana Society, Persatuan Penganut Agama Buddha Fo Guang Malaysian, Buddhist Tzu-Chi Merit Society and Vajrayana Buddhist Council Malaysia.

马来西亚佛教协调委员会成员包括马来西亚佛教总会、马来西亚佛教青年总会、马来西亚佛教弘法会、锡兰佛教精进会、马来西亚佛光协会、佛教慈济功德会以及马来西亚佛教金钢乘总会。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。