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backflow的音标：backflow的英式发音音标为：['bækfləʊ]backflow的美式发音音标为：['bækfloʊ]...
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For use with backflow preventer test cocks to protect from damage.用于防回流阀测试旋塞,防止受到破坏.Backflow preventer manufactured from 300 Series stainless steel for corrosion resistance.防回流阀采用耐腐蚀的300系列不锈钢制造.However, backflow may now ...
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However, backflow may now be creating other side effects.不过, 眼下回流可能正在引发其它一些负面影响.From this causes two backflow agitation efficiency not high substantial clause.由此引起二次回流搅动效率不高的重要原因.Backflow preventer manufactured from 300 ...