Failure of reinforced concrete structures exposing to marine environments occur frequently due to steel corrosions induced by intrusion of chlorides.

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In the process of sour gas reservoir development, hydrogen sulfide usually causes corrosions and damages in oil line, casing pipe and drilling apparatus.

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In the process of sour gas reservoir development, hydrogen sulfide usually causes corrosions and in oi1 line, casing pipe and drilling apparatus.

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Corrosions occur initially on the surface of metal, therefore, surface treatment can stop the corrosion and improve biocompatibility of metal.

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Some fine desulfurizcr used at room temperature are studied and evaluated, which are effective to eliminate the corrosions by absorbing these sulfur compounds.

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The corrugated ceramic packings offer excellent resistance to high-temperature hydrogen sulfide and naphthenie acid corrosions.

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In the course of real-life detection of fuselage, the paint thickness variations or small variations in fastener head protrusion may lead to the lift-off. Corrosions as well as lift-off brings about similar influence on PEC signals and makes signal interpretation very difficult.

實際檢測過程中，機身表面涂層厚度變化或鉚釘帽傾斜容易使得探頭在掃描過程中產(chǎn)生提離永久自慰网站喷水，提離引起的信號變化與腐蝕缺陷引起的信號變化非常類似色五月综合在线，使得信號的解釋非常困難。

Burns and corrosions of external body surface, specified by site T20-T25

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However, Co-Cr alloy will be under various chemical and even electro-chemical reactions with surrounding materials while used in the complicated and relatively chemical active oral environment. The released metallic ions, generated from the consequent corrosions, not only affect the designed material properties, but also have negative effect on human body at different degree.

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Certainly,their disadvantages are also very clear:the first is the low-level degree will block the employment which he seek for;the second is it's difficult to resist the temptations and Corrosions for his young,his immature mind , the age of his puberty;the third is he hasn' the complete structure of knowledge and skill of major,so he only swims aross the river of society by stepping the stones of the riverbed.

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