one course at a time是什么意思? course:一道菜; (比赛的)一场; (砖、瓦、石的)层列; (矿)脉 one course at a time 一次一层 when the parallel shaft bricks are installed, the silicon carbide castable is placed behind, one course at a time and vibrated. 安装完一层平行的井筒砖,碳化硅浇注料放在后面(提高耐高温效果),每次一层并且震一震(夯实,提高安装效果)查看更多