... Near field length近场长度 Near surface defect近表面缺陷 Net density净黑度 ...
双语例句
1
By oil immersion coupling. the system can be used to detect nearsurface defects with focussing probe. find surface cracks with surface wave probe and determine defect size with computerized C-scan.
Uneven deformation and extrusion drape in the different pass when rolling cause long strip defect on the surface. Defects on the surface and near surface are the main cause for cold heading to craze.