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直齿锥齿轮
释义
直齿锥齿轮
Encyclopedia
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锥齿轮
释
straight bevel gear
直齿锥齿轮
产形轮齿线是过节锥顶点的直线的锥齿轮。
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police safeguards
police safety culture
police science and technology informatization
Police Scotland
police sign
police's law-abidingness
police social supervision
police specialization movement
police sports
Police Story
Police Story series
police sub-stations and police booths
police-tax department cooperation
police technology
police testifies in the courtroom
police training
police training programme
police uniform
police vehicles
police vessels
police vocational values
police warning
police weapon equipments
policies for disaster risk reduction of agriculture
policies for the development of agricultural science and technology
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