It has introduced in detail on structure, Properties and main technical specifications and technical parameters of cored tool.
详细介绍了取心工具的构造、特点及其主要技术规格与技术参数。
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。
Introduce the structure and the technology of ring structure iron cored transformer. Analyzed the social influence and economy effect of ring structure iron cored transformer.
介绍了环型铁芯变压器的结构特点和技术优势，分析了环型铁芯变压器在生产、应用过程中取得的巨大的经济效益和社会效益。
The technology of transformer push forward the technical development of transformer. S11 ring structure iron cored transformer are taking place of the S9 common transformer.
环型铁芯变压器推动了变压器行业的技术进步，S 11型环型铁芯变压器是普通s9型配电变压器的更新替代产品。
The technology of transformer push forward the technical development of transformer. S11 ring structure iron cored transformer are taking place of the S9 common transformer.
环型铁芯变压器推动了变压器行业的技术进步，S 11型环型铁芯变压器是普通s9型配电变压器的更新替代产品。
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