Modelling of the Pressure effect on Acoustic Speed in 2-Propanone under a Broad Range of Temperatur 3. 3.
The conventional long-base line(LBL) positioning system for ROV in deep-sea mining produces large errors due to the variation of acoustic speed along the water depth. 摘要对于深海采矿集矿机ROV的定位，采用传统的长基线水声定位系统通常存在较大误差。
Electromechanical equation of piezoelectric crystal stack is derived from the piezoelectric equations of constant D and constant stress,but the acoustic speed of under the constant E is used in design in practical transducer design. 推导晶堆的机电状态方程时 ,选用的是恒定电位移及恒定应力时的压电方程 ,最后设计计算时却又用的是恒定电场下的声速。
ANALYSIS OF FROZEN ACOUSTIC SPEED FOR HOMOGENEOUS TWO-PHASE FLUIDS 对于均匀双相流体冻结音速的分析
No horse has a speed comparable to that of his. 没有一匹马的速度能比得上他的马。