oxygen acid

Under the condition of the butyraldehyde 50 mL, the oxygen flow 90 mL/ min, reaction time 6 h, catalyst 0.6 g, reaction temperature 50 ℃. The yield of butanoic acid was 95.8%.

在正丁醛50mL、氧气流量为90mL/min、反应时间6h、催化剂为0.6g、反应温度50℃的条件下，正丁酸的收率可达95.8%。

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Relationship Between pH and Contents of Oxygen and Surface Oxygenous Acid Group of Carbon Black

炭黑的pH值与氧含量、表面酸性含氧基团含量的规律性

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Both oxygen and acid resistance of the partical anaerobes increased.

驯化菌株的耐氧件由专性厌氧变为兼性厌氧,耐酸性由初始酸度pH5.5时 不生长变为pH4.5时生长受抑制.

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Comparison and analysis on the contents of blood lactic acid and blood ammonia between low-pressure and normal pressure oxygen cabin

低压氧舱与正常训练运动员血乳酸、血氨比较及分析

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With open width continuous scouring and bleaching machine, ramie-cotton bleached fabric was produced and existed problems were solved. As a result, the shortened process, less pollution in acid oxygen bleaching, bast skin removal and better whiteness of the fabric were realized.

利用平幅连续练漂机生产亚麻棉漂白布，缩短工艺流程，减轻酸性氧漂的污染问题，且麻皮去除干净，织物白度较好。

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The orotic acid is one kind of camp oxygen medicine, also calls Vitamin B 13.

乳清酸是一种营氧药, 也称维生素B13.

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The closed oxygen cycle and the phenomenon of thermal runaway in valve-regulated lead-acid batteries

阀控式铅酸蓄电池中的氧循环与热失控现象

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Furthermore, environmental stress on plant tissue culture may also have some important impacts: reactive oxygen species produced during environmental stress will do harm to nucleic acid, protein, cell membrane in tissue culture cells.

环境胁迫对植物组织培养同样也能产生重要的影响：其产生的活性氧对组织培养细胞中的核酸、蛋白、膜造成伤害。

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Recently, with the rapid progress of the study on spinal cord injury, many theories have been founded and some of them, such as the oxygen-derived free radicals, calcium overload and excitive amino acid theory, have been accepted by many researchers.

近十几年来，随着对脊髓损伤研究的深入，大量有关继发性损伤的学说被提出，其中，自由基损伤、细胞内钙超载和兴奋性氨基酸毒性作用等学说已被广泛接受。

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Corrosion occurs in furfural refining unit are mainly: furoic acid corrosion, furfural coking corrosion, phase corrosion, naphthenic acid corrosion, dissolved oxygen corrosion and sulfur corrosion, etc. Pipeline corrosion in furfural refining unit is often caused by various types of corrosion. 3.

糠醛精制装置中发生的腐蚀主要有糠酸腐蚀、糠醛结焦腐蚀、相变腐蚀、环烷酸腐蚀、溶解氧腐蚀、硫化物腐蚀。糠醛精制装置中的管线腐蚀常常是多种类型腐蚀的引起的。

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