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The first part consists of three experiments:(1) The rings were incubated in KH, 20, 50 mmol/L 〓 for 1 house, relaxation in response to the EDHF stimuli A23187 in 30nmol/L U46619-induced preconrtaction in the presence of 7 μ mol/L indomethacin, a cyclooxygenase inhibitor, 300μmol/L LNNA, a nitric oxide biosyhnthesis inhibitor, and 1mmol/L tetraethylammonium , a 〓 blocker, or 3 μmol/L glibenclamide , a 〓 blocker, was compared with the control;(2) After the arteries were incubated in KH, UW solution or HTK solution at 4℃ for 4 hours, endothelium-derived relaxation (percentage of 30nmol/L U46619 precontraction) was induced by A23187 in the present of 7 μmol/L indomethacir and 300μmol/L LNNA;(3) After incubation with KH, UW solution and STH (either at 37℃ in oxygenated organ chamber or at 4℃ in a refrigerator for 4 hours), endothelium-derived relaxation (percentage of 30nmol/L U46619 precontraction) was induced by A23187 in the present of 7 μ mol/L indomethacin and 300 μmol/L LNNA.
第一部分研究结果:(1)单纯浸泡于KH的冠状动脉A23187能引发66.67%的血管舒张反应,经TEA及20mmol/L、50mmol/L钾离子作用后,血管舒张反应程度显著降低,但经GBM作用后改变不明显;(2)与保存于KH的冠状动脉相比,A23187引发的血管舒张反应程度,保存于UW液的明显下降,保存于HTK液的无明显变化;(3)在37℃条件下,血管环浸泡于STH出现缓慢轻微的舒张反应,浸泡于UW液初期出现短暂收缩反应,但此后主要以舒张为主:在37℃条件下,血管经UW液保存后,U46619引发的收缩反应程度降低;不论在37℃或4℃条件下,A23187引发的血管舒张反应,经UW液保存后明显下降,但用STH保存后变化不明显。
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The presence of inflamed joints resulting from an infection elsewhere in the body is similar to the human condition of "achy joints" in the presence of influenza.
在场的关节发炎导致感染其他地方的类似机构的人权状况&微弱关节&的存在感。
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1A series ofω-alkylmercapo acid were synthesized by two methods:one involved the reaction of the appropriateω-bromoalkyl acid with mercaptide under the presence of base;the other method was used only for the long alkyl compound by the reaction ofω-alkenyl acid and alkanethiol in the presence of AIBN.
正是基于以上考虑,本论文探索了合成下沿带有硫醚官能团,而上沿带有偶氮官能团的杯[4]芳烃衍生物的方法,进行了以下研究: 1采用ω-溴代羧酸和烃基硫醇在碱性条件下发生反应,或由ω-烯基羧酸和硫醇在AIBN的存在下反应,得到了ω-硫醚羧酸,使用氯化亚砜将羧酸转化为酰氯。
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Moreover,the selective oxidation of primary and secondary alcohols to corresponding carbonyl compounds with the multinuclear copper complexes Cul-Cu4 as catalysts have been conducted using TBHP and O_2/TEMPO,respectively.Among them,the copper complex Cu3 showed the best performance.On the performances of the two classes of oxidants,benzylic and heterocyclic alcohols could be effectively oxidized to carbonyl compounds.Specifically,the secondary alcohols could be effectively oxidized to ketones with excellent selectivity up to 100%in the presence of TBHP and the allylic alcohols could be effectively oxidized to aldehydes in the presence of O_2/TEMPO system.
实验结果还表明,在TBHP或O_2/TEMPO存在下,各配合物催化剂均能使各种取代芳香伯/仲醇以及杂环醇等以不同程度的转化率和选择性转化成相应的醛或酮,其中,配合物Cu3在O_2/TEMPO存在下可使苯甲醇和烯丙醇等以较高转化率和近100%的选择性转化成相应的醛,而对其它芳香醇和脂肪伯/仲醇等的催化性能则较差;在TBHP存在下,配合物Cu3则可使1-苯乙醇和其它仲醇以较高转化率和近100%的选择性转化为相应的酮,但对各类其它伯醇选择氧化的性能相对较差。
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The intermediate decyl-glycidol ether of Gemini phosphate surfactant was synthesized with decanol and epichlorohydrin in the presence of phase-transfer catalyst; the intermediate decyl digomeric glycol of Gemini phosphate surfactant was prepared by opening ring reaction of decyl glycide ether and glycol in the presence of potassium as catalyst; and the influence of type and dosage of phase-transfer catalysts was studied.
以正癸醇与环氧氯丙烷为原料在相转移催化剂存在的条件下合成Gemini磷酸酯表面活性剂的中间体I-正癸基缩水甘油醚,讨论催化剂种类及用量对反应的影响;以乙二醇和正癸基缩水甘油醚为原料,金属钾为催化剂合成Gemini磷酸酯表面活性剂的中间体Ⅱ-正癸基低聚二醇,讨论催化剂种类与用量对反应的影响;以P2O5与正癸基低聚二醇为原料合成Gemini磷酸酯表面活性剂,讨论投料比、反应温度和反应时间等因素对反应的影响。
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He took off his hat in the presence of this common peasant man because he knew that there was another and a more awful presence hovering about the room, and eager to be admitted.
他在这个普通农民的面前脱下他的帽子,因为他心里明白,房间附近还有另一个更加令人敬畏的存在,它急着要踏进房间里来哩。
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The results indicated that anaerobic sludge could only decompose Acid Mordant Dark Yellow GG in the presence of glucose while aerobic sludge decomposes Acid Mordant Dark Yellow GG with or without the presence of glucose.
试验结果表明,厌氧菌能够通过葡萄糖共代谢作用很快降解酸性媒介黄GG;而好氧条件下经驯化活性污泥不能降解酸性媒介黄GG,经过较长时间驯化活性污泥能降解酸性媒介黄GG,但降解效果很差。
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Computer-assisted TKA is a useful alternative to conventional TKA for knee arthritis with extra-articular deformity where accurate restoration of limb alignment may be challenging because of the presence of a deformed tibia or femur or in the presence of hardware.
计算机辅助全膝置换术是对伴有关节外畸形的关节炎常规的全膝关节置换术治疗的一种有效的替代治疗方法,由于胫骨或股骨畸形的存在或金属的存在,肢体对准线准确恢复也许是会面临挑战。
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The cyclization of carbodiimides 2 and 6 with phenol or alcohol was studied and the results showed that the cyclization of carbodiimides 2 and 6 with phenol in the presence of solid potassium at room temperature to 40℃, the cyclization of carbodiimides 2 and 6 with alcohol should in the presence of RONa.
进一步研究了碳二亚胺2和6与酚和醇的成环反应,结果表明该碳二亚胺与酚反应在碱(固体K_2CO_3)催化条件下,室温或加热到40℃便可顺利关环,与醇反应需要用到更强的碱醇钠催化才可以顺利关环。
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According to its teachings we are in the Presence of God positionally, and nothing is said about the need to experience that Presence actually. The fiery urge that drove men like McCheyne is wholly missing.
根据目前基督教的說法,我們只在地位上來到神面前,從沒有說到我們可以經驗實際到与神同在的事實,像馬子賢那樣動人的火熱,現今是完全找不到了。
- 相关中文对照歌词
- Weak In The Presence Of Beauty
- In The Presence Of Another World
- In The Presence Of Enemies, Pt. 1
- In The Presence Of Enemies, Pt. 2
- In The Presence Of My Enemies
- In The Presence Of The King
- In The Presence Of
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。