相关timbering的文学知识

timbering造句

timbering造句

Lastly,thepapersimulatesbolttimberingofthelanewayalongthegob.Thisgraduationdesignelaboratesonthedeeppits'timberingofLijiangwangardenofJiujiangCity.AtAdlerhorst,concretebunkersemergedfromthegroundclad...