Coarse grain for soft and expandable material 軟而且展性大的材質(zhì)時(shí)用粗粒
A new technology on filling in and sealing against leak with expandable materials is introduced in this paper , which is applied in drilling in limestone area 摘要本文介紹了石灰?guī)r地區(qū)鉆探施工中,利用液體高膨脹材料充填、堵漏新工藝。