... constant head feeder 恒压头喂料机 ; 定高差进料器 feeder head 冒口 ; 收缩头 ; 补给头 ; 给进头 top feeder head 顶冒口 ...
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复杂的堑壕网中包含了指挥所、前线补给点、医疗站、伙头军和厕所。
The intricate network of trenches contained command posts, forward supply dumps, first-aid stations, kitchens, and latrines.
一个九大头针活瓣插座有充足的房间容纳 12 AT7 必需的，而且以电力驱动的补给适合。
There was enough room for a nine pin valve socket to accomodate the 12AT7 required, and the power supply suited.
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