添加适量的扩孔剂也能一定程度地提高孔容.Addition of appropriate amount of pore - expanding agents could increase the pore volume.管道的选择, 测量, 切割, 扩孔和刻螺纹; 安装喷嘴以支撑管道系统.Select, measure, cut, ream and thread pipe, install sprinkler heads and moun...
devise a stratagem定计; 设计Trade discounts may be used as a competitive stratagem to secure customer loyalty.商业折扣可以用作维护顾客忠诚度的一种竞争手段。Knit the brows and a stratagem comes to mind.眉头一皱，计上心来。A common saying goes, " Knit the bro...