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Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

Purification equipment and clean rooms, anti-static main product series include: clean room dedicated rags, clean room dedicated mop, PVC gloves; fingerstall, cleansing caps, shawls clean clothes, clean women's caps, medical cap clean, clean open eyes cap, clean separate suits, one-third of body clean clothes and clean four-piece suits, one-time visit to clothes and hat disposable (non-woven fabric), a one-off masks (non-woven fabric, paper), one-off shoes, clean socks, clean shoes , clean gloves and other essential supplies GMP.

净化设备及洁净室、防静电系列主打产品包括：洁净室专用擦布、洁净室专用拖把、PVC手套；指套、洁净工帽、洁净披肩服、洁净女式帽、洁净医帽、洁净露眼睛帽、洁净分体服、三分体洁净服、四连体洁净服、一次性参观服、一次性帽子、一次性口罩、一次性鞋套、洁净袜套、洁净鞋、洁净手套等GMP必备用品。

Second order incident boundary condition on fixed incident boundary is derived for numerical simulations, based on the cnoidal or sinusoidal motions of wave maker paddle, which shows that the prediction with second order incident boundary condition is more accurate than the prediction with first order incident boundary condition. 2 The analytical solution for higher-order Boussinesq equations is derived and its applicable range is discussed. 3 A 2-D fully non-linear numerical model using boundary element method is developed to obtain wave forces acting on rectangular obstacle. 4 The three-dimensional fully non-linear waves are studied in a numerical wave tank using finite element method.The studies on the coupled numerical model combined Boussinesq equations with Laplace equation are following.

非耦合非线性波浪计算模型：1 根据造波板做椭圆余弦运动或正弦运动速度，推导出数值模拟波浪水槽时固定入射边界上的二阶波浪入射边界条件，数值计算结果和实验结果的对比表明采用二阶入射边界条件对波面升高的预报比采用一阶入射边界条件对波面升高的预报更为精确；2 推导了波浪水槽造波板做正弦运动所产生波浪的高阶Boussinesq方程摄动展开解析解，讨论了该解析解的适用范围；3 对整个波浪水槽应用边界元方法数值模拟了波浪对物体的非线性作用；4 用有限元法求解三维Laplace方程模拟了三维完全非线性波浪水槽。

We presents an accurate F method based on corresponding point adjustment.The method adjusts coresponding points according to the fixedness of projective transformed cross ratio,then calculates F matrix accurately through linear and non-linear methods. When computing intrinsic parameter,A matrix,we simplify the step,and stress on the two important parameters of A.The result will be getten through solving Kruppa equation based on SVD decomposition.In order to compute extrinsic parameters,we use linear method to get initial R and t,then apply non-linear method to accurate them.

提出了基于匹配点调整的F求精方法，先根据摄影交比不见性对手工选择的匹配点进行调整，再用线性、非线性结合的方法求精F矩阵；在计算内部参数A中，进行了一定的简化，把重心放在A中重要的两个参数上，用SVD分解法计算Kruppa方程；在计算外部参数时，首先用线性法求解R、t，然后再用非线性法迭代求精。

In the self - calibration scheme , the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters . we presents an accurate f method based on corresponding point adjustment . the method adjusts coresponding points according to the fixedness of projective transformed cross ratio , then calculates f matrix accurately through linear and non - linear methods . when computing intrinsic parameter , a matrix , we simplify the step , and stress on the two important parameters of a . the result will be getten through solving kruppa equation based on svd decomposition . in order to compute extrinsic parameters , we use linear method to get initial r and t , then apply non - linear method to accurate them

提出了基于匹配点调整的f求精方法，先根据摄影交比不见性对手工选择的匹配点进行调整，再用线性、非线性结合的方法求精f矩阵；在计算内部参数a中，进行了一定的简化，把重心放在a中重要的两个参数上，用svd分解法计算kruppa方程；在计算外部参数时，首先用线性法求解r、 t ，然后再用非线性法迭代求精。

Base on the turbulent shoot non-premixed combustion of methane/air, make a coordinate transform on flame for reactive scalar equation, build laminar flamelet model for two dimension steady state non-premixed turbulent reacting flows.

以甲烷／空气的湍流射流扩散燃烧为基础，对通用的反应标量方程在火焰面上进行坐标变换，建立二维稳态湍流扩散火焰的小火焰模型。

We specialize in producing non-woven, nylon, and cotton shopping bags, gift bags, aprons, cosmetic bags, business suit bags, flannelette bags, and other non-woven fabric goods.

我们专长于无纺布，尼龙布，牛津布，编织布，棉布购物袋，礼品袋，围裙，化妆袋，西装套等系列产品。

Aluminum frame, the sandwichcone of Non- woven carbon fiber+Cell+Non-woven carbon fiber, 50mm (2) copper clad aluminum voice coil with flat wire, the special magnet system with Faraday ring and demodulation coil, 120mm×20mm Y30 Ferrite magnet.

铝合金框架， sandwichcone非织造碳纤维+细胞+无纺布碳纤维，使用50mm （ 2 ）铜包铝线音圈与扁线，特别磁体系统与法拉第环和解调线圈， 120毫米× 20毫米的Y30铁氧体磁铁。

Aluminum frame, the sandwichcone of Non-woven carbon fiber+Cell+Non-woven carbon fiber, 75mm (3) copper clad aluminum voice coil with flat wire,the special magnet system with Faraday ring and demodulation coil, 170mm×22mm Y30 Ferrite magnet.

铝合金框架， sandwichcone非织造碳纤维+细胞+无纺布碳纤维， 75毫米（ 3 ）铜包铝线音圈与扁线，特别磁体系统与法拉第环和解调线圈，一百七十〇毫米× 22毫米Y30铁氧体磁铁。

According to the contemporary theory of metapho r, abstract thought and metaphysics are not literal-only, fleshless , non-metap hor and non-embodied any more, so that the rational tradition of Western philos ophy was questioned.

由于当代隐喻理论的发现，西方哲学的理性传统受到质疑，抽象思维和形而上学不再被看做是纯粹字面义的、"无血无肉"的，而是隐喻性的、以身体的经验所体现的。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。