protection n. 1.保护,保卫,防御,掩护,包庇,照顾 (from; against)。 2.保护者,防护物 (against); 〔美俚〕(歹徒向人索取的)保护费。 3.护照,通行证;〔美国〕(国籍)护照;通行证。 4. 【经济学】保护贸易制,保护政策。 protection against cold 防寒用具。 protection against moths [lightning] 除虫,避(雷)。 protection at halts 驻军警戒。 protection on move 行军警戒。 under the protection of 在…保护下,受…保护,托…照顾。
Based on different soil corrosion factors and pipe corrosion principle , obligated current negode protection and sacrifice anode protection can be used here 根据不同的土壤腐蚀因素以及管道腐蚀原理,可以采用强制电流阴极保护和牺牲阳极的阴极保护。
The corrosive reason of underground pipeline is explained , the anode protection and application of underground pipeline are introduced , and some useful conclusion are obtained 说明了埋地管线腐蚀的原因,介绍了埋地管线的阳极保护及应用,得到了一些有益的结论。
Abstract : the corrosive reason of underground pipeline is explained , the anode protection and application of underground pipeline are introduced , and some useful conclusion are obtained 文摘:说明了埋地管线腐蚀的原因,介绍了埋地管线的阳极保护及应用,得到了一些有益的结论。
According to electrochemistry theory , electrochemistry protection is divided into anode protection and negode protection . in proportion to corrosion protection theory and practice in the world , underground pipes should take negode protection 根据电化学原理,电化学保护分为阴极保护和阳极保护,根据国内外防腐理论和实践,埋地管道宜采用阴极保护。
In the light of theory and application , the author raised that sacrifice anode protection could be used on old fuel gas pipes in shen zhen city , and also raised the choice of sacrifice anode , detailed process calculation , the design of ground bed , execution method and detection management 本论文在理论和实际应用的基础上提出了深圳旧燃气管道宜采用牺牲阳极保护,并提出了牺牲阳极的选择、具体的工艺计算、地床的设计、施工的方式和检测管理。