单词	angle of thread
释义	angle of thread : the angle between the sides of a screw thread measured in an axial plane Word History First Known Use 1847, in the meaning defined above
随便看	instagrams instal install installant installants installation installations installed installer installers aris Arisaema arisaemae arisaemas arisaemata arisaid Arisaka arisaka rifle arisara arisarums arise arisen ariser arises arishes

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