The back-tipping of boom of crawler crane due to sudden unloading must be considered in design of anti-back-tipping device of crawler crane to ensure the stability of the complete crane.是什么意思_The back-tipping of boom of crawler crane due to sudden unloading must be considered in design of anti-back-tipping device of crawler crane to ensure the stability of the complete crane.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句