The invention belongs to the technical field of oxidation synthesis and discloses a chemical method for high-selectivity oxidation and oxygen-adding open loop of catechol substance.
本发明属于氧化合成技术领域，公开了一种邻苯二酚类物质高选择性氧化和加氧开环的化学方法。
Such influencing factors as oxygen blowing, argon blowing, alloys adding and ladle status on the end point temperature of ANS - OB refining are analyzed.
分析了ANS—OB精炼终点钢液温度的影响因素，包括吹氧、吹氩、合金添加情况和钢包状况等。
The oversea technology makes further basic study, pays attention to the application of filtering, deaeration, oxygen adding in inner cooling water treatment.
国外基础研究工作较深入，重视过滤、除氧和加氧技术在内冷水处理上的应用。
It was an effective method in suppressing the internal pressure of Ni MH battery by adding the catalyst for oxygen reduction into the MH electrode.
在贮氢电极中添加氧还原催化剂是一种有效降低电池内压的方法。
An experiment was made on the pharmaceutical wastewater treatment with the contact oxidation process by adding effective microorganisms (em) to remove the chemical oxygen demand (COD).
应用生物接触氧化法投加有效微生物菌群(EM)对制药废水中化学需氧量的去除效果进行试验研究和分析。
Incubation experiments in simulated normobaric hypoxia condition and at high altitude with adding oxygen were conducted to explore influences of oxygen on embryonic mortality of chicken.
通过模拟常压低氧和高海拔增氧孵化试验，研究了氧气浓度对低地良种鸡蛋胚胎死亡率和孵化率的影响。
The process is acid adding pre-leaching at normal pressure, pressurized oxygen leaching to leach out base metals and filtering separation to obtain solid noble metal concentrate.
其特征在于 采用常压加酸预浸、再加压氧浸出，将羰化合成残渣中的贱金属浸出，过滤分 离得到固体贵金属精矿。
In the process of steel-making, killing oxygen by adding aluminum process is a controlled object whose parameters are distributed and non-linear, and its observed data are discrete.
炼钢生产中，定氧加铝工艺的被控对象具有参数分布、非线性、动态观测数据离散等特征，定氧加铝模型的建立是该工艺的核心。
New research suggests that inhaling pure oxygen can actually harm the brain, and recommends adding carbon dioxide to the mix to preserve brain function in patients.
最新的研究表明吸入纯氧实际上能损伤大脑，在纯氧中掺入二氧化碳可以保护病人的大脑。
New research suggests that inhaling pure oxygen can actually harm the brain, and recommends adding carbon dioxide to the mix to preserve brain function in patients.
最新的研究表明吸入纯氧实际上能损伤大脑，在纯氧中掺入二氧化碳可以保护病人的大脑。
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