单词	bucking bar
释义	bucking bar noun : a steel block serving to back up a rivet while it is being headed and clinched Word History Etymology from present participle of buck entry 2
随便看	carbonylest carbonylic carbonyls carbora carborane carboras Carborundum carborundums carbos carbothermal carbothermic Carbowax carbox- carboxy- carboxyhemoglobins carboxyl carboxylase carboxylases carboxylate carboxylated carboxylates carboxylating carboxylation carboxylations carboxyler

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