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The boundary conditions and the continuity conditions were satisfied by means of artificial springs introduced between the disk and the blades, which greatly simplified the choice of admissible function in Ritz procedure.

模型用Timoshinko梁模拟叶片，用平板模拟轮盘，并在叶片和轮盘间引入弹簧元件模拟叶片和轮盘间的耦合关系，简化了两者间的边界条件和连续性条件。

The model was solved by the Ritz method, and the orthogonal polynomials generated by the Gram-Schmidt process were employed as admissible function for both disk and blades. With this approach, the matrix derived from kinetic energies becomes diagonal and numerical manipulation can become easy and stable.

采用Gram-Schmidt方法生成正交多项式作为李兹容许函数进行模型的离散化，简化了所得到的频率方程求解过程，有利於求解过程的数值稳定性，并可方便地通过对方程系数性质的分析了解结构振动模态的性质。

Instead, relatively slow-moving water is used to blast air past its blades.

相反，相对缓慢移动的水是用来爆炸空气过去的刀片。

Ionic Pro ionic air purifiers trap irritants and allergens on three collection blades and then release purified air back into the room.

专业离子的离子空气净化器陷阱刺激性和过敏原三个收集刀片，然后释放空气净化回到了房间。

The term also refers to metal blades covering the intake and exhaust outlet s of ventilation and air-conditioning units.

现代通风和空调设备的进气和排气口上盖的金属叶片也称百页。

The term also refers to metal blades covering the intake and exhaust outlets of ventilation and air-conditioning units.

现代通风和空调设备的进气和排气口上盖的金属叶片也称百页。

The airscrew included various propellers, fans, windmills and helicopter blades, etc.

空气螺旋包括螺旋桨、风车、风扇和直升机叶片等。

The mixing power and circulation characteristics of Newtonian fluid and pseudoplastic fluid were measured in a φ300mm organic glass vessel,by using anchor and tri-leaf impeller,anchor and inner-outer screw,orthogonal twi-stratm triangle blades and single screw,orthogonal twi-stratum triangle blades and inner-outer screw types of combined agitators.

为使聚合釜内搅拌介质在湍流、过渡流及层流域都能达到良好的混合，对锚－三叶推进器、锚－内外单螺带、正交双层三角桨－单螺带、正交双层三角桨－内外单螺带等4种组合桨搅拌器，于φ300mm的有机玻璃釜中，测定了在牛顿流体和假塑性流体中的搅拌功率和循环特性。

To undertake all types of carbide saw blades and grinding, high-speed steel circular saw blades and grinding.

承接各类硬质合金锯片及修磨，高速钢圆锯片及修磨。

The two blades are fixed to constitute 45°(it adopts one special blade for cutting profile of professional picture frame) to cutting 45 degree profile, adopt German 13 hard alloy saw blades, imported guide rail, automatic cooling spray lubrication and hydro-pneumatic damper stepless speed regulation, thus it has high linear velocity and stable cutting angle, good surface finish, high precision and stable feeding.

采用德国成熟的设计理念结合最新的使用要求与习惯、针对用于38、50、65系列铝合金门窗料、镜框料以及新型隔热型材门窗料45度切割而开发，专业45度切采用两锯片固定构成45°（专业镜框料切割锯床采用一把专制刀具），对型材完成45°切割。选用德国13硬质合金锯片、进口导轨，线速度高，因而切割角度更加稳定、精确，自动喷油冷却润滑、气液阻尼无级调速装置，加工表面光洁度好，精度高、进给平稳。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。