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Terms for subject Mechanics containing helical | all forms | exact matches only
EnglishChinese
double helical gear人字【双螺旋】齿轮
helical gear斜【螺旋】齿轮
helical scan digital cassette recorder螺旋扫描数字盒带记录器
solid body helical centralizer实心螺旋式扶正器

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