以下为句子列表：
英文: A static/dynamic characteristic test was done to obtain all dynamic parameters of the lathe, then the software ANSYS for FEA was used to simulate and display various vibration modes and natural frequencies with the guide joint parameters taken into accoun
中文: 首先利用静、动态特性实验得出机床的各项动态参数，然后用ANSYS有限元分析软件模拟和显示机床在考虑导轨结合面参数条件下的各阶模态下的振型和固有频率。
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英文: Abstract: According to the dynamic demand of main shaft system,the structural dynamic modification method is used for correcting the stiffness of the supportings member and joints,so that the dynamic characteristic of main shaft system should meet the nee
中文: 文摘:根据细纱机主轴系统的动特性要求,应用结构动力学修改方法来修正支承和联轴节单元的刚度,以使主轴系统的动特性满足设计要求.根据修正过的支承和联轴节的刚度,一个弹性支承和弹性联轴节的实际结构已经被设计出.比较具有弹性支承和弹性联轴节的主轴系统的数字仿真与设计要求.其一致性证明了SDM方法的有效性和设计方法的正确性.
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英文: Abstract: According to the fragment warhead of the missile,we propose dynamic characteristic of fragment dispersion in different reference frames,calculate dynamic distributing density function in earth reference frame and missile reference frame,and poin
中文: 文摘:以某型防空导弹的破片杀伤式战斗部为例，分析了在不同坐标系中的破片动态飞散特性，分别计算出在地面坐标系和弹体坐标系中破片的动态飞散密度函数，指出在不同的坐标系中战斗部的飞散区和飞散密度不同。
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英文: Effect of initial substrate concentration on dynamic characteristic of hydrogen production by photosynthetic bacteria;
中文: 底物初始浓度对光合细菌产氢动力学特性的影响
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英文: Analysis on Dynamic Characteristic and Flow Induced Vibration of Heat Exchanger Tube Bundles
中文: 换热器管束动态特性分析及流体诱导振动研究
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