振动料斗通常采用这种定向机构。
The vibrating hopper usually adopts the directional mechanism.
定向器束在发射状态下的振动特性能够反映发射系统动态性能和结构的合理性，并且会影响火箭、导弹武器系统的射击精度。
The vibration characteristic of launch tube in launching state can reflect the dynamic performance and the structural rationality of launch system, and it will influence the shooting precision.
采用自同步定向激振理论设计，将重力自溜与振动出矿融为一体的YZZ型振动助流器，具有分节组合、大倾角、无侧板的结构特点。
YZZ vibration flow aiding machine is a newly developed ore drawing device, which is devised on the basis of the theory of autogenuous synchronization and directional vibro excitation.
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