Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/adc215ec70690aeb14e73acd6516bcd6.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 nondestructive testing英英字典_nondestructive testing剑桥英语解释_nondestructive testing柯林斯英文解释_食材铺反向词典
1. N any of several methods of detecting flaws in metals without causing damage. The most common techniques involve the use of X-rays, gamma rays, and ultrasonic vibrations 非破坏性试验 ( abbr: NDT)