compounding type air bleeding valve
...球阀：automatic compensation two-way hare sealing eccentric ball valve 复合式排气阀：compounding type air bleeding valve 屋脊式隔膜阀：weir diaphragm valve ..
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compounding type air bleeding valve
复合式放气阀
以上为机器翻译结果，长、整句建议使用 人工翻译 。