forked crosshead ; yoke trunnion ; forked ordinary cross head
... 增长方式 way of economic growth 叉形十字头 yoke trunnion 无定形层 amorphous layer ...
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... forked journal 叉形轴颈 forked crosshead 叉形十字头 forked road 歧路 ...
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叉形长槽十字头 forked long slotted cross head
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