... 弹簧圆规或分规 bow instrument 弹簧圆规,弹簧分规 spring bow instrument 弹簧小圆规 springer bow ; spring compass ; springbowcompass ; bowcompass ...
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spring compass WESTBANK 弹簧小圆规
double spring drop compass 双簧小圈圆规
spring-bow compass 弹簧小圆规
spring bow compass 弹簧圆规
double e spring drop compass 双簧小圈圆规
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