请参看一下喷嘴梢，并告诉我喷嘴梢上的记号。
Take a look at the spray tip and write back to me with the markings you find on the tip.
并对极端工况下喷嘴结构强度进行了校核，计算结果表明，喷嘴结构设计能够满足强度要求。
And the structural strength of the nozzle was checked at extreme operating conditions, the calculations showed that the nozzle design could meet the strength requirements.
为了揭示低压大流量下自激振荡脉冲射流清洗的脉冲发生机理，研究了这种工况下喷嘴结构和运行参数的优化设计范围。
To explain the generative mechanism of low pressure and mass flow self-excited oscillation pulsed jet, the nozzle optimized design range of structure and operation parameters was investigated.
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