England had withdrawn into their shell with the luxury of an early lead, allowing the Americans to pin them back in their own half.
早早领先的英格兰龟缩防守，拱手将美国人引入本方半场。
Pump wear parts are mainly drive shaft and bushing, passive gear center hole and shaft pin, pump shell lumen and gear, gear face and pump cover, etc.
齿轮泵的磨损部位主要有主动轴与衬套、被动齿轮中心孔与轴销、泵壳内腔与齿轮、齿轮端面与泵盖等。
There is a pin hole between outside shell and output axis.
外套与输出轴的径向有一个插销孔。
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