grout cover, grouting pad
grout cover, grouting pad
[煤炭科技英汉词典]
grout cover, grouting pad止浆垫
井筒工作面预注浆时,预先在含水层上方构筑的,能够承受最大注浆压力(压强)并防止向掘进工作面漏浆、跑浆的混凝土构筑物。
是什么意思,grout cover, grouting pad的解释,grout cover, grouting pad的翻译
grout cover, grouting pad
[煤炭科技英汉词典]
grout cover, grouting pad是什么意思,grout cover, grouting pad的解释,grout cover, grouting pad的翻译