cathodic area 中文意思是什麼
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The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered
氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。 -
The recent application situation and typical cases of external fusion bonded epoxy coating of buried steel pipelines are described and analysed, from which some suggestions of the design and construction of external fusion bonded epoxy coating are put forward as follows : management of the pipeline project should be strengthened to guarantee the quality of coating ; external fusion bonded epoxy coating should be preferred in flat open country ; space between cathodic protection stations can be reduced suitably in the mountainous and rocky area to attain the best protection effect
摘要綜述和分析了近幾年埋地長輸管道環氧粉末塗層的應用現狀和典型實例，並由此提出了環氧粉末塗層在設計、施工中的一些改進建議：加強管道建設的管理；在平原地帶可優先選用環氧粉末塗層；在山區石方段可適當減少陰極保護站的間距。
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