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 ...
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 ...
The silica powder toughened is an electrician filler of toughness epoxy for epikote developing.增韧硅微粉是为增韧环氧树脂而研制开发的一种电工级专用填料.Only by taking part in practice can the young people be toughened and hardened into steel.年轻人只有通...
He unveiled the picture with a ceremonious gesture.他郑重其事地为这幅画揭幕.Such a ceremonious opening, but it had nothing practical in it.把剪彩仪式搞得这么隆重, 纯粹是摆花架子.During festival, in every country, Christendom all holds ceremonious sou...