In the course of digging, a main bearing seal at the cutterhead of AVN3080 water leak type shield construction machine made in Germany was damaged.是什么意思_In the course of digging, a main bearing seal at the cutterhead of AVN3080 water leak type shield construction machine made in Germany was damaged.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句