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periodical section
tech.
周期断面型钢
periodic section
met.
周期断面型钢
(steel, 【技】横断面形状和尺寸呈周期变化的一类型钢。它包括纵轧周期断面型钢、横轧周期断面型钢和斜轧周期断面型钢。周期断面型钢能代替一部分用机械加工的构件,具有节能降耗、降低成本等优点,是一种有发展前途的钢材类型。)
periodical section
:
2 phrases
in 1 subject
Metallurgy
2
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