“lead bullion”可以造什么句，lead bullion造句

2、Britannia Refined Metals Ltd. was built in 1931 to refine the lead bullion produced at the mine in Queensland,Australia.

4、The paper introduced the practice in realizing stable and high output continuously by the rational modification of operation and equipment of the lead bullion system in No. 3 Smelter, Shuikoushan.

3、The paper introduced the practice in realizing stable and high output continuously by the rational modification of operation and equipment of the lead bullion system in No.

1、Finite element simulation of rolling lead bullion with different hollow ratio