built beam

航海及海运专业英语词汇(B6) ... building-out resistance 补偿电阻 built beam 组合梁 built block 组合滑车 ...

丝锁气压计_馆档网 ... "建筑材"," Building-timber" "组合桁"," Built beam" "体积弹性系数"," Bulk modulus" ...