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helical spur gear
meaning in English
斜齿正齿轮,斜齿圆柱齿断
Related Words
spur domestic demand
helical cutting
helical tiller
helical lampl
helical band
double helical
helical motio
helical manometer
helical conformation
helical twist
helical spring seriate sizes
helical springs fatigue testing standard
helical steel su ort
helical steel support
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