However, backflow may now be creating other side effects.
不過, 眼下回流可能正在引發(fā)其它一些負(fù)面影響.
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From this causes two backflow agitation efficiency not high substantial clause.
由此引起二次回流攪動(dòng)效率不高的重要原因.
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Backflow preventer manufactured from 300 Series stainless steel for corrosion resistance.
防回流閥采用耐腐蝕的300系列不銹鋼制造.
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Especially made for testing all reduced pressure zone backflow preventers.
專用于檢測(cè)所有減壓區(qū)防回流閥.
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For use with backflow preventer test cocks to protect from damage.
用于防回流閥測(cè)試旋塞,防止受到破壞.
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They prevent steam backflow from the header to the boiler.
這種閥門能夠防止蒸汽從集氣箱倒流到鍋爐里.
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The backflow preventer must be installed upstream of the regulator.
防倒流裝置必須安裝在調(diào)節(jié)閥的上游位置.
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Also, mechanical backflow preventers and air gaps can be bypassed.
此外, 機(jī)械式防回流閥和氣隙可以作為旁路.
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During irrigation period , the backflow from the farmland pollutes the branch.
每當(dāng)農(nóng)業(yè)灌溉之時(shí), 支流都因倒流而嚴(yán)重污染.
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Contact the factory for specific approvals on the reduced pressure backflow preventer.
如果需要特殊的減壓防回流閥的認(rèn)證,請(qǐng)與工廠聯(lián)系.
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Installing a backflow preventer in a pit or vault is not recommended.
不建議在坑內(nèi)或拱頂內(nèi)安裝防回流閥.
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Slowly open upstream shutoff and allow the backflow preventer to fill slowly.
慢慢開啟上游關(guān)閉閥,讓防回流閥慢慢注水.
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Media type check valve for preventing backflow.
止回閥類用于阻止介質(zhì)倒流.
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Four required per backflow preventer.
每個(gè)防回流閥需要四個(gè).
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Efficiency and backflow current are the two most important criteria of multistage depressed collector.
效率與電子回流是多級(jí)降壓收集極的兩個(gè)非常重要的指標(biāo).
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