We describe this architecture synthesizable with veriloghdl langrage in fpga . according to the specification of the fpga , we chose the optimal multiplier and adder 我们用veriloghdl对这种结构进行基于fpga实现的可综合的描述，并结合fpga的特点选择了最佳的乘法器和加法器的设计。
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Where the invited object is the ordinary foreign teacher of language , he shall have gained the bachelor or higher degree and professional trainingon langrage teaching as well as some amount of langrage teachingexperience 聘请对象为一般语言外籍教师，应有大学本科以上学历，受过语言教学的专门训练并具有一定的语言教学经验。
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According to elastic mechanics theory and langrage equation , the first order shape function dynamic equation of tension weight of belt conveyor is derived , and the four series of experienced formulas is established , which provide theoretical instructions for determining the location of tension weight and the depth of concealed pit . 1fig . , 2tabs . , 5refs 根据弹性理论和拉格朗日方程，导出了带式输送机平衡锤的一阶模态动力学方程，求出了4组便于估算平衡锤振幅的经验公式，该经验公式为平衡锤的静平衡位置及暗井深度的确定提供了理论指导.图1 ，表2 ，参5
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Then experiment was processed to testify the calculated results . based on the theory of vibration mode , harmonic response and experiment , fea meshing , fea element and bound condition of expansion joint were analyzed . then a parametric fea modeling & post process software was developed by apdl and visual basic langrage 本文采用有限元数值分析方法，利用大型商用有限元计算软件ansys ，研究了基于结构参数化设计思想的波纹管膨胀节的振动模态和含波纹管膨胀节管系的振动响应分析方法，开展了波纹管膨胀节模态试验验证。
