NDT Non-Destructive Test 无损探伤 ; 非破坏性试验 Non-destructive test method 非破坏试验法 non-destructive test by resonance 共振法无损探伤 ..
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Test specimens shall be taken after all non-destructive testing (NDT) has been carried out and which has passed the relevant inspection criteria for the NDT method(s) used.
试样的截取应在所有非破坏性试验（NDT）已经完成并已经通过所用NDT方法的相关检查依据后进行。
The popular non destructive test methods for the foam-cored sandwich structure are reviewed; including air coupled ultrasonic method, pulse-echo ultrasonic method and shearogragh method.
回顾了泡沫夹层结构常用的无损检测方法：空气耦合超声方法、脉冲回波超声方法以及激光错位散斑干涉方法。
The test method employed is non-destructive, so that only one model is needed for investigating stresses in a rotating disc at various speeds, and for determining the static shrink fit stresses.
由于这是一种非破坏试验方法，所以仅一个模型就可以对几种不同转速以及静过盈状态下的应力进行测定。
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