Revenue allocations to the 774 LGAs surged by 46.91 per cent to N2.35tn in August 2024 from N1.599tn recorded in August 2023. According to the data, N288.93bn was distributed in January, N278.04bn ...

干耦合超声检测方法由于无需在待检测材料表面涂抹水或油等液体耦合剂，操作方便，移动灵活，适用于固体火箭发动机壳体、飞机机翼等一些对结构完整性要求较高且需要长期使用或贮存的部件。当利用干耦合方法对复合材料平板结构进行检测时，激发出的Lamb ...