round bottomed clay vessel的意思|示意
美 / /
英 / /
圆底陶罐
round bottomed clay vessel的网络常见释义
圆底形白土容器 圆底形白土容器 round bottomed clay vessel 预应力混凝土容器用经回火的冷拉钢丝 standard specification for steel wire hard drawn for prestressing concrete tanks .