The NDT equipment should be used after inspection and in the period of validity .

无损检测设备应检定后并在有效期内使用。

The nil ductility transition temperature ( ndt ) and the reference temperature ( rtndt )

无延性转变温度（NDT）与基准温度（RT_（NDT））

Conventional NDT methods can only detect the last two phases of the fatigue cycle .

传统的NDT方法只能探测到疲劳周期的后两个阶段。

Simulating NDT on line of surface defect of hot slabs at temperature over 1100 ℃

1100℃以上高温连铸板坯表面缺陷的模拟在线无损检测

Restoration of blurred image caused by the size of radiation source in NDT digital radiography

辐射成像无损检测技术中辐射源几何尺寸引起图像模糊的恢复