Our surveyors also discovered some cracks on the surface of a number of other cases.
我们的商检人员还发现其他不少的木箱表面有裂缝。
There is an urgent need in detecting the cracks on the surface or subsurface of material.
材料表面和表面下浅层裂纹的检测要求越来越迫切。
It is very important for metal load-carrying structure in detecting the cracks on the surface or subsurface of material.
材料表面和表面下浅层裂纹的检测对金属承力结构十分重要。
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