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Terms for subject Shipbuilding containing helix | all forms | exact matches only
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helix angle tester螺旋角检测仪
helix cathode螺旋状阴极
helix circuit螺旋电路
helix impedance螺旋阻抗
helix structure螺旋形结构
helix wave-guide tube螺旋状波导管
helix wave-guide tube导管