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本研究工作对水下焊接电弧物理及焊接冶金的研究有参考价值。
This research is significant and valuable to the study of underwater welding arc physics.
youdao
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他由学物理改为学冶金是正确的吗？
Was he right to change from Physics to Metallurgy ?
youdao
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他由学物理改为学冶金是正确的吗？
Was he right to change from Physics to Metallurgy?
youdao
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他由学物理改为学冶金是正确的吗？
Was he right to change from Physics to Metallurgy?
youdao