... underspeed spacer procedure；降速调整垫操作程序 underspeed throat；降速喉颈部 underspeed throat oil；降速喉颈部油 ...
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短语
降速喉颈部压力
underspeed throat pressure
降速喉颈部油
underspeed throat oil
降速阀喉颈部测压孔
underspeed valve throat pressure tap
降速阀喉颈部压力
underspeed valve throat pressure