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高二氧化碳
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  hypercapnia
     The maximum binding capacity (Bmax ) of beta-adrenoceptors in the control group was 330 ± 45 fmol/mg protein, and was decreased to 260±38 and 263±30 fmol/mg protein in hypoxia and hypercapnia for 4 to 8 weeks (P all less than 0.05). The dissociation constant of the pulmonary beta-adrenoceptor has no significant change before and after hypoxia and hypercapnia (P all larger than 0.05).
     对照组肺β受体最大结合容量(Bmax)为330±45fmol/mg蛋白,缺氧高二氧化碳4、8周后分别降至260±38和263±30fmol/mg蛋白(P均<0.05),缺氧高二氧化碳前后肺β受体解离常数(kd)无明显变化(P均>0.05)。
短句来源
     he serum angiotension─converting enzyme(ACE)activity and the concentration of serumangiotension Ⅱ(AⅡ)which were collected from arterial and venous blood in 80 male SD rats fed1,4 and 8 weeks under normobaric hypoxia hypercapnia were examined.
     雄性SD大鼠于常压低氧高二氧化碳下饲养1、4、8周,分别采取动静脉血测血管紧张素转换酶(ACE)活性和血管紧张素Ⅱ(AⅡ)浓度。
短句来源
     Objective To study the expression of prostacyclin I_2 synthase (PGI_2 S) in chronic hypoxic hypercapnia bronchi rats and its distribution.
     目的研究前列环素合酶(PGI2S)在慢性低氧高二氧化碳大鼠的支气管表达及分布。
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     Results OPN gene and protein widely expressed in epithelia and smooth muscle cells of bronchi in rats of hypoxic hypercapnia group having significant difference with those of control(P<0.01).
     结果OPN蛋白和mRNA在低氧高二氧化碳组大鼠支气管上皮细胞及平滑肌细胞中广泛表达,与对照组比较均有显著性差异(P<0.01)。
短句来源
     Aim: To study the effect of chronic hypoxic hypercapnia on expression of COX-2 mRNA in pulmonary arterioles.
     目的:研究慢性低氧高二氧化碳对大鼠肺动脉环氧酶-2(COX-2)基因表达的影响。
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  high carbon dioxide
     Development and Clinical Application of the Full Automatic Animal Rearing Cabin ofLow Oxygen and High Carbon Dioxide
     全自动低氧高二氧化碳饲养舱的研制与临床应用
短句来源
     Development of animal rearing cabin of low oxygen and high carbon dioxide
     低氧高二氧化碳动物饲养仓的研制
短句来源
     Development and research of clean grade animalfeeding cabin of low oxygen and high carbon dioxide
     常压低氧高二氧化碳清洁级动物饲养舱的研制
短句来源
     This paper describe the method of how to establish an animal rearing cabin of low oxygen and high carbon dioxide.
     本文阐述了建立实验动物模型的低氧高二氧化碳动物饲养仓的方法。
短句来源
     It can mimic the en-vironment of low oxygen and high carbon dioxide at atmospheric pressure and automatically measure and control the corcentrations of oxygen and carbon dioxide as well as temperature and humidity in the cabin. The system may provide the equipment support for clinical COPD study.
     该舱可模拟常压下的低氧、高二氧化碳环境 ,自动测控舱内氧气浓度、二氧化碳浓度、温度与湿度 ,为临床研究慢性肺源性心脏病的机理提供设备支持。
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  high co 2
     Among different treatments, HE-C, HA-C and Hu-C was highest under the low water and normal atmosphere; FA-C was highest under the low water, high CO2 and low O2;
     从不同培养条件下各时间点的平均值可见,HE、HA和Hu均以低含水量正常大气条件(W1C2O2)最大,FA则以低含水量高二氧化碳低氧气(W1C3O1)处理最大。
短句来源
     It indicated that high CO2 was beneficial to formation and accumulation of FA.
     而高二氧化碳则有利于FA的形成。
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     By using prostacyclin synthetase inhibitor indomethacin, the effects of prostacyclin in the presence of endothelial cell on hypoxia and high CO 2 induced vasodilatation were studied in newborn calf basilar artery strips.
     本工作是在初生小牛基底动脉血管条上,用前列环素合成酶抑制剂—消炎痛(Indomethacin)研究前列环素及内皮细胞在低氧高二氧化碳脑血管扩张机制中的作用。
短句来源
     Storage in the environment of low O2 and high CO2, the storage life of clean fewflower wildrice reached 49 days.
     在低氧、高二氧化碳环境中(温度0~3℃),去壳茭白贮藏期可以达到49 d。
短句来源
     From changes of AlogK, high O2 was beneficial to complexity of molecular structure of HA and FA; high CO2 was beneficial to simplility of molecular structure.
     从ΔlogK的变化来看,一般高氧有利于HA、FA结构的复杂化,而高二氧化碳则有利于HA、FA结构的简单化、年轻化。
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  “高二氧化碳”译为未确定词的双语例句
     Results During NREMⅠ+Ⅱ and NREM Ⅲ+Ⅳ, the normal subjects showed no significant decrease in P0.1, △P0.1/△SaO2 and △P0.1/△PaCO2(P > 0.05), but △VE/△SaO2 and △VE/△PaCO2 decreased significantly(P < 0.05).
     在NREM睡眠期,低氧及高二氧化碳通气反应穴△VE/△SaO2、△VE/△PaCO2雪降低穴P<0.05雪,但P0.1的低氧及高二氧化碳反应穴△P0.1/△SaO2、△P0.1/△PaCO2雪均维持在清醒时的水平穴P>0.05雪;
短句来源
     ② no significant difference was found between the control and the groups which exposed to 0.68~1.35×10~5 mg/m~3 CO_2;
     而浓度为0.68~1.35×10~5mg/m~3的单纯高二氧化碳急性暴露2小时后小鼠学习能力无明显变改;
短句来源
     Conclusion:ET 1 mRNA was mainly presented in free side of Clara cell and NEB of rat bronchus.
     结论 :慢性缺氧高二氧化碳大鼠支气管中ET 1mRNA主要定位于Clara细胞和神经上皮小体的游离面胞浆。
短句来源
     AIM: To investigate the roles of nitric oxide/L-arginine(NO/L-Arg) pathway and urotensin-Ⅱ(UⅡ) in the development of pulmonary hypertension induced by chronic hypoxia-hypercapnia in rats.
     目的:探讨一氧化氮/L-精氨酸(NO/L-Arg)系统和尾加压素Ⅱ(UⅡ)在大鼠慢性缺氧(O2)高二氧化碳(CO2)肺动脉高压病理过程的作用及关系。
短句来源
     ④ UT mRNA in each grade of pulmonary arterioles of all hypoxia-hypercapnia groups was higher than NC group(respectively,P<(0.01)),and those of two abaxial grade vessels in 1-week group were the highest.
     4HH组与2HH组间无明显差异。 ④三级肺小动脉UT mRNA相对含量的变化:各低氧高二氧化碳组均高于NC组(P均<0.01),以1HH组后2级肺小动脉的表达最强,而4HH组与2HH组间无显著差别(P>0.05)。
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  hypercapnia
Changes in the thoracic and abdominal components of the respiratory system were studied in ten males in the standing position during voluntary hyperventilation during normocapnia, hypercapnia, and hypocapnia.
      
Its intensity increased during hypercapnia and decreased during hypocapnia, which is evidence of the additivity of the volitional and chemoreceptor stimuli of breathing.
      
All experiments were divided into five series: hypercapnia + normoxia, hypercapnia + hyperoxia, hypercapnia + hypoxia, normocapnia + hypoxia, and ambient air (control).
      
The results showed that functional capacities of the body are less impaired under the conditions of hypercapnia combined with hyperoxia.
      
When the chemoreceptor stimulation increases (during the progressing hypoxia and hypercapnia), the accuracy of the reproduction decreases, mostly because of involuntary overestimation of the abdominal components of the respiration volume.
      
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  high carbon dioxide
It was increased at high carbon dioxide tension, and by glucose, theophylline and cytochalasin B.
      
The exceptional papillary environment with low oxygen and high carbon dioxide is of interest in this context and its impact on CaOx toxicity to renal cells has to be evaluated.
      
The biocontrol yeast Pichia anomala J121 prevents mould growth during the storage of moist grain under low oxygen/high carbon dioxide conditions.
      
It is likely that high carbon dioxide production is the main cause of the low growth yield of aerobic granules, indicating a possible energy uncoupling in aerobic granular culture.
      
Pamukkale thermal waters (35?°C), exhibiting calcium-bicarbonate-sulfate composition and high carbon dioxide concentration, are of a predominantly meteoric origin.
      
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  high co 2
salina cells exposed to low temperatures, high irradiance, and high CO2 concentrations.
      
Changes in Lipid Metabolism during Adaptation of the Dunaliella salina Photosynthetic Apparatus to High CO2 Concentration
      
Changes of photosynthetic capacity of some plant species under very high CO2 concentrations in Biosphere 2
      
The initial slope of A/ light curve became steep under high CO2 (700 μmol · mol-1) compared with that under low CO2 (350 μmol · mol-1) for the C3 species growing in very high CO2(>amp;gt;2 200 μmol · mol-1) for a long period.
      
The results indicated that high CO2 concentration has no significant effects on shoot height but significantly impacts shoot weight and ratio of shoot weight to height under three soil moisture levels.
      
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In the present work the wheat seeds were used as the main materials for the investigation of the activity of alcohol dehydrogenasc (ADH) and its isozymes. It was shown that the ADH activity decreased during seed germination under aerobic condition, but increased under low oxygen and high carbon dioxide partial pressures. A relatively higher alcohol dehydrogenase activity was also found in the embryo from seeds germinated in solution of one per cent ethanol.

小麦种子在空气条件中萌发时,乙醇脱氢酶随发芽时间延长而降低。在低氧和高二氧化碳浓度中萌发的种胚,酶活性增加的幅度随厌氧的程度和CO_2浓度的增加而上升。用1%乙醇处理小麦种子,并令其在乙醇中发芽三天,对照的ADH活性几乎完全丧失,处理仍有很高活性,约为对照的10倍。在上述不同条件下萌发的种胚,ADH同工酶也显示不同的区带,其中用高浓度CO_2处理,在偏阳极一端比对照多两条带,CO_2浓度愈高这两条带愈明显。这些结果表明,种子萌发时ADH活性及其同工酶的变化与组织中内源乙醇的浓度有关。说明乙醇是ADH的天然诱导物。ADH为一种诱导酶。

Electoencephalograms of the six divers were made-during N_2-O_2 saturationdiving at depth of 50 metres for 5 days to test the effects on EEG during hypercapniaor hypocapnia.The results were as follows:1.Under-exposure to N_2-O_2 mixture at the depth of 50 metres,there Wasslowing in frequency,decreasing in amplitude of α Waves.The activity of the slowwaves was increased in resting the EEGs.During the exposure the EEG of oneof the subjects showed a preponderance of the slow waves,in which there weremainly θ waves...

Electoencephalograms of the six divers were made-during N_2-O_2 saturationdiving at depth of 50 metres for 5 days to test the effects on EEG during hypercapniaor hypocapnia.The results were as follows:1.Under-exposure to N_2-O_2 mixture at the depth of 50 metres,there Wasslowing in frequency,decreasing in amplitude of α Waves.The activity of the slowwaves was increased in resting the EEGs.During the exposure the EEG of oneof the subjects showed a preponderance of the slow waves,in which there weremainly θ waves with some δ waves.When the eyes were stimulated by light,thewaves could disappear temporarily and α waves recover.When the changes ap-peared in the EEGs under the high pressure,some subjects might exhibit severalnervous symptoms,such as headache,dizziness,nausea and vomiting,etc.Whilethe exposure continued these symptoms would disappear.After the pressurereturned to normal,the EEGs recoverd very quickly to the original level.2.Under normal pressure,hyperventilation led to hypocapnia which couldcause the increasing of the slow waves in the EEG.But when the slow waveswere predominent under the high pressure,hyperventilation could cause theirdecrease。Under normal pressure,when hypercapnia was induced by repeatedbreathing the EEGs also showed some changes.Under high pressure and hyperca-pnia they could result in more obvious changes.

本文报道人体暴露于50米氮氧饱和条件下高、低 CO_2对脑电图的影响。1.在50米氮氧暴露时静息脑电图上的α波频率下降,振幅降低,指数减少,而慢波指数明显增多。有的受测者在暴露期,脑电图上可表现为以慢波占优势,主要为θ波,也有少量δ波,此时给予光刺激可使慢波暂时消失,α波暂时恢复。高压下在脑电图发生明显变化时,某些受测者可出现一些神经症状,如头痛、头昏、噁心、呕吐等。随着在高压下暴露时间的延长,症状消失。减至常压后脑电图能很快恢复到加压前的水平。2.在常压下过度通气造成体内低二氧化碳,可引起脑电图上慢波的增加;而在高压下,当静息脑电图以慢波占优势时,过度通气所致的低二氧化碳可引起慢波成分的减少。在常压下重复呼吸造成体内高二氧化碳时,脑电图出现变化;而在高压下高二氧化碳可以引起脑电图更为明显变化。

Some poisoning cases including deaths were reported during unloading log from the cargo, which were supposed to be a shore of harmless goods. This simulated experiment was designed to find out the cause of these accidents. In the experiment, the sawdust and bark of Oregon pine were enclosed in the simulated chamber and the gases in the chamber were sampled and analysed. The result showed that the content of oxygen dropped to below 5% and the carbon dioxide content exceeded 12% in the simulated chamber after...

Some poisoning cases including deaths were reported during unloading log from the cargo, which were supposed to be a shore of harmless goods. This simulated experiment was designed to find out the cause of these accidents. In the experiment, the sawdust and bark of Oregon pine were enclosed in the simulated chamber and the gases in the chamber were sampled and analysed. The result showed that the content of oxygen dropped to below 5% and the carbon dioxide content exceeded 12% in the simulated chamber after the experiment was started. In addition to the higher concentration of carbon dioxide, some dichlorodifluorometliane and 2, 3 butanediol were also found by GC-MS analysis. Meanwhile, in the control chamber, the content of oxygen was decreased very slowly and that of the carbon dioxide and other components did not elevate. It is clear that the etiology of the accident was most likely due to hypoxia and hypercapnia.

原木虽为非危险货物,但在舱内卸载作业中屡有中毒乃至死亡事故的发生。本实验就是为查清事故发生的确切原因而设计的。实验时,将美国花旗松锯屑及树皮密闭在模拟货舱内并定期采气进行较严格的分析。结果表明,实验开始后模拟舱内氧浓度迅速下降,二氧化碳浓度明显升高.7天左右,氧浓度降至5%以下,而二氧化碳升到12%以上,二者浓度均已大大超出危险界限.色-质联用仪分析除发现大量二氧化碳外,还有一定量的二氯二氟甲烷和丁二醇.与此同时,对照舱内氧含量仅呈缓慢下降趋势,且未测出二氧化碳及其他成份的含量有任何升高.实验结果说明,原木货舱内作业的主要危险是缺氧和高二氧化碳

 
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