The height, width and thickness of the compactsubstance of the buccal, lingual and inferior bony plates were measured with vernier calipers.
先用游标卡尺测定各截面的高度、宽度，以及颊侧、舌侧和下缘骨密质的厚度。
2
Creating conditions to let growing extensive and compact flocculating substance of micro organism is the effective way to promote the efficiency of biological treatment of effluent.