Objective To observe the structure alloyage in the fusion zone of different metals welded by laser.
目的观察不同金属之间焊接后熔焊区组织合金化情况。
Calculation method of metals loss in fusion casting process is theoretically recommended in details in the paper.
从理论上详细介绍了金属在熔铸过程中的损耗计算方法。
By prolonging the time of fusion, the pollution of these metals can be reduced.
延长熔融时间可减少这一类重金属的二次污染。
By prolonging the time of fusion, the pollution of these metals can be reduced.
延长熔融时间可减少这一类重金属的二次污染。
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