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A square bar used as a support for a topmast.
桅栓：方木条，用来支撑中桅。
youdao
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It may make quantitive account of skew ratio from plain roller rolling square bar.
此模型可对平辊轧制矩形件产生的脱方量进行定量计算。
youdao
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It may make quantitive account of skew ratio from plain roller rolling square bar.
此模型可对平辊轧制矩形件产生的脱方量进行定量计算。
youdao