A new technique is practiced in the EPB shield tunneling construction, which erected the ring in whole on the ground and then hung the ring down to the tunnel.是什么意思_A new technique is practiced in the EPB shield tunneling construction, which erected the ring in whole on the ground and then hung the ring down to the tunnel.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句