Rudder pintle to be forged steel and fitted with stainless steel sleeve and a synthetic bush bearing.
舵栓采用铸造钢并用不锈钢套和一个合成衬套轴承安装。
They've just announced a new custom-fitted keyboard sleeve for both the ultra-thin wireless and wired models.
苹果公司刚刚发布了一种新型的可定制的超薄有线和无线样式的键盘袖套。
To avoid wearing, stator is fitted with sealing ring and balancing sleeve etc. If worn out, they can be replaced by spare parts.
为防止定子磨损，定子上装有密封环、平衡套等，磨损后可用备件更换。
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