back seal

短语词组

短语

• spring back radial seal 弹簧支撑径向密封
• back -blade seal 背叶片密封
• poly -silicon back-seal 多晶硅背封
• Liquid Back Seal 右密封
• Back seal gas 冲吹气体
• Back seal test 上密封试验;上弥缝实验;上密封实验;上弥缝测试
• Back Seal Automatic Packing Machine 背封式自动包装机
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