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seal双刀口密封
meaning in English
seal by double knife-edges double knife-edge
Related Words
刀口
刀口直尺
刀口刃
锥形刀口
刀口变形
刀口承
刀口锐利
刀口尺
刀口支承
石英刀口
sealyham
sealyham terrier
seam
seam allowance
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