One Vee-block arrests two degrees of freedom, and one long Vee-block or two short Vee-blocks limit four degrees of freedom.是什么意思_One Vee-block arrests two degrees of freedom, and one long Vee-block or two short Vee-blocks limit four degrees of freedom.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句