发布时间:2025-01-30 22:54:20
把气泵的活塞、活塞环、钢套换掉就行了,注意活塞环安装的方向,开口不要重叠。不会换最好到维修店换,很便宜的。 漏气,换一个。
读东南亚地形图回答下列问题1图中甲是______海峡乙是______国家2中南半岛的地势
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