The nonorthogonal velocity is measured by LDV, from which the orthogonal three-dimensional components are computed through transformation equation.
而必须使用非正交l DV系统先测量得到非正交的三维速度，然后通过变换方程求得正交三维速度。
2
The spatial coherences between the sound pressure and the three orthogonal components of the particle velocity in underwater ambient noise were investigated.
研究海洋环境噪声场中声压和质点振速的三个正交分量间的空间相干。
3
MethodsThe orthogonal test was adopted to study the eluting effect of MDG with the elution rate as an index, and concentration of eluant, amount, elution velocity as the influence factors.