pitprop
美['pɪtprɒp] 英['pɪtprɒp]
n. 坑木；坑道支柱
英英释义
Noun- a wooden prop used to support the roof of a mine
例句
- Keywords patio pitprop losing rate benefit; 关键词天井;坑木;损失率;效益;
- Keywords ceramsite concrete;pitprop bracket;ration;cement;light concrete bracket; 陶粒混凝土;坑木支架;配合比;水泥;轻型混凝土支架;
- pitprop bracket 坑木支架
THE END
