In the lumbar region, upper and lower collateral anastomosis of each segmental artery can be obviously found which included 2~3 segments for each segmental artery.是什么意思_In the lumbar region, upper and lower collateral anastomosis of each segmental artery can be obviously found which included 2~3 segments for each segmental artery.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句