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The beam was screwed down to the cross bar.
横梁已用螺丝柠在垮木上。
youdao
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The hot pot die casting technology of large cross section aluminum bar are introduced.
简要介绍大截面铝母线的热顶铸造技术。
youdao
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The hot pot die casting technology of large cross section aluminum bar are introduced.
简要介绍大截面铝母线的热顶铸造技术。
youdao