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hair spring
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hair spring
Encyclopedia
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hair spring
游丝
用金属细丝经冷轧、绕丝、定形而成阿基米德螺旋状的能产生反作用力矩的弹性元件。是一种平面涡卷弹簧。
Physics
力学
hair spring, hairspring
游丝
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Piaget’s theory of moral development
PI algebra
PI-algebra
pi alkene metal complexes
pi-alkene metal complexes
pi alkyne metal complexes
pi-alkyne metal complexes
pi allyl complex mechanism
pi-allyl complex mechanism
pi allylmetal complexes
pi-allylmetal complexes
pia mater
Pianbaozi Culture
Pianguan Xian
pianli
Pianliancheng Yizhi
Pianma Incident
piano
Piano Dream
piano mover’s problem
Piantou Guan
Pianya
Piao chicken
Piao Yongguang
pi-approximations
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