However, the theory and technology of existing protection based on travellingwave is imperfect.
然而现有行波保护的保护原理还不成熟，技术还不完善。
2
No effort was made to assess the performance of the surveyed materials as surface travellingwave absorbers.
评估表明，把被研究材料作为表面行波吸收剂是不可行的。
3
To improve the location accuracy of travellingwave, the semi orthogonal wavelet algorithm is applied in the data processing to detect the wavefront of travelling waves.