trial map specimen 地图试用样张
The limitation of the specimen, model and wall map used in the human anatomy experimental teaching has been urging people to look for more teaching media.
人体解剖实验教学所使用的标本、模型、挂图的局限性促使人们去寻找更多的教学媒体。
A new ultrasonic testing system has been developed for application to stator insulation of large generator. It provides A-scan signals and C-scan map for tested specimen.
自行研制了大电机定子绝缘超声波检测系统，它能同时显示被测试样的A扫描脉冲回波和C扫描平面图。
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