stem tube bearing strips 艉轴套条材
The Vikings built ships with high bows and a projecting stem bearing a menacing figurehead, similar to the ships of William I the Conqueror as seen in the Bayeux Tapestry.
维京人建造的船只，其船首较高，伸出的船首有着吓人的装饰物，与拜约挂毯上所见到征服者威廉一世的船只类似。
A cover bearing and integral seat bearing guide the stem assembly for precise alignment with the seat.
阀盖轴承和整体阀座轴承引导阀杆总成，实现与阀座的精确定位。
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