它由竖井 、 暗渠 、 明渠和涝坝 ( 一种小型蓄水池 ) 四部分组成.It consists of shafts, culverts , channel and flood dam ( a small reservoir ) composed of four parts.由于工程老化,年久失修,北墅水库输水暗渠墙体多处发生位移破坏,严重影响工程的正常使用.In Beishu Reservoir, the displacement de...
里面衬有一层耐火砖.The inside is lined with bricks.这一点可以用耐火砖来达到.This can be achieved by means of firebricks.L. D. 炼钢法使用炉内砌有耐火砖的氧气 顶吹 转炉.The L. D. Process uses a top - blow oxygen converter lined with heat - resistant brick....