英语词汇ball and ring apparatus是什么意思，ball and ring apparatus的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	ball and ring apparatus
释义	ball and ring apparatus　【机】球环软点测定器
随便看	pumping source pumping station pumping station pumping station pumping table pumping threshold pumping unit pumping-back method pumpingpump pumpkin pumpkin pumpkin pumpkin pumpkin beetle pumpkin bread pumpkin head pumpkin pie pumpkin pie pumpkin pine pumpkin seed pumpkins pumpkinseed pumpkinseed pumpman pumpmanifold

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