弧形闸门，弓(弧)形退水(泄水)闸门

apical segmental bronchus(BI)

segmental abrasive disc grinding with the cylindrical surface

single segmental baffle

brainstem【解剖】;segmental apparatus【脊椎】;truncus encephali【解剖】

segmental plate

arteria segmenti superioris【解剖】;superior segmental artery【解剖】

segmental motion

double segmental baffle