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- fourier and waves equations 傅里叶和波动方程
- Methods used in the study of ultrasonic bonding transducer are summarized, such as equivalent network, direct solution of the vibration and wave equations, and finite element method （FEM）. 对超声键合用换能器的研究方法进行了总结，例如等效网络法、直接解振动与波动方程法、有限元法。
- The ship is combating the wind and waves. 那只船正与风浪搏斗。
- The sailors battled with the winds and waves. 水手们与风浪搏斗。
- As seamen, they had to battle with the winds and waves. 作为海员，他们得同风浪搏斗。
- Ann always to stand at the window and waves to see off. 安总要站在窗口前并挥手送别。
- Some nonclassical potential symmetry generators and group-invariant of heat equation and wave equation were determined. 主要研究了热方程与波方程的非古典势对称群生成元及相应的群不变解。
- The ship combatted with the wind and waves. 这艘轮船与风浪搏斗。
- The wind and waves make a man of a sailor. 水手是在大风大浪中成长的。
- They battled with the winds and waves . 他们与风浪进行搏斗。
- Based on the stress-strain relation energy relation and wave equation in Biot theory on acoustic propagation in a fluid-saturated porous medium,an equation of acoustic intensity is derived with the similar way used in an isotropic solid. 根据Biot多孔介质声学理论中的应力-应变关系、能量关系、声波方程,采用与在均匀固体介质中平行的方法,推导了流体饱和多孔介质中的声强表达式,进一步完善了多孔介质声学理论。
- The destroyer sped through wind and waves. 那艘驱逐舰顶风斩浪向前行驶。
- Greek fans applaud and wave flags. 希腊观众鼓掌并挥动旗子。
- The ship was combating with the wind and waves. 船正与风浪搏斗。
- They battled with the winds and waves. 他们与风浪进行搏斗。
- They battled against the winds and waves. 他们与风浪搏斗。
- The ship combated with the wind and waves . 船与风浪搏斗。
- The ship combated with the wind and waves. 船与风浪搏斗。
- Our ship made head against the wind and waves. 我们的船顶着风浪前进。
- Instead, it swerves, dips and waves. 相反，地面会扭曲、下沉、起伏。
