短语词组短语PTF Polymer Thick Film 聚合物厚膜Polymer thick film resistor 厚膜电阻Metech Polymer Thick Film 低温厚膜材料polymer thick film embedded resistors 聚合物厚膜电阻polymer thick film electroluminescent lamps 聚合物厚膜电致发光灯 返回 polymer thick film