2) core recovery
岩芯回收率;岩芯采取率
3) recorery
岩矿芯采取率
4) percentage recovery of concrete cores
砼芯采取率
1.
The technique is to use the 89-mm-wider socket tubes as drilling rods and make holes by the single-action twin-pipe drilling tools, which can ensure the perpendicularity of boreholes and the percentage recovery of concrete cores in the construction of bridge piers.
介绍了福宁高速公路部分高架桥跨海大桥桩基钻探取芯检测施工工艺 ,研究采用了 89mm套管作钻杆 ,单动双管钻具钻进 ,从而保证了钻孔垂直度及砼芯采取率的较高质量要求。
5) percentage recovery of coal core
煤芯采取率
补充资料：岩芯
1.见"岩心"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条