单词	cotter pin
释义	cotter pin /ˈkɒtə pɪn / (also cotter) noun 1A metal pin used to fasten two parts of a mechanism together.She slid the cotter pin back through the nut and bolt and screwed the grease cap back on.... A cotter pin acts a safety measure to prevent the arm from sliding off the stub. The cotter pin missed the male spline on the flap motor. 1.1A split pin that is opened out after being passed through a hole. Origin Mid 17th century: of unknown origin.
随便看	Commager, Henry Steele command command and control commandant command chain command-driven command economy commandeer commander commander-in-chief Commander of the Faithful commandership commanding commandingly command language command line command line interface commandment command module commando commando knife Command Paper command performance command post command sergeant major

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