在一些机械设备中，受货位常常随俯仰机构作俯仰运动。
In some mechanical equipments, the receiving freight position moves following pitching part.
射击精度是衡量火炮性能的重要指标，火炮俯仰机构的间隙对火炮射击精度有很大影响。
The firing accuracy is an important parameter of guns performance. Clearances in the guns mechanism have a great influence on firing accuracy.
炮管、气室、推动气缸、俯仰机构、转台和各部分连接件都要直接或间接承受冲击载荷，该载荷是灭火炮构件设计的主要依据。
The load impact which mainly determined the designation directly and indirectly put on the tube, gas chamber, pushing air cylinder, pitching machine, revolver and connecting parts.
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