查询词典 oxygen-deficient

We took the cultured suspension cells ofPanax ginseng as our experimental material, studied the generation of singlet oxygen whichinduced by fugal elicitor, testified the singlet oxygen acted as a signal molecule in plantdefense responses.

我们以人参悬浮细胞为实验材料，研究了真菌激发子诱导下单线氧的产生情况，进一步证明了单线氧在植物防卫反应中作为信号分子的作用。

The growth of H. fusiformis was determined by weighting the fresh algae every two days and the photosynthetic oxygen evolution was assayed by a Clark-type oxygen electrode. To determine the contents of chlorophyll a and UV-absorbing compounds, methanol extracts from H. fusiformis were scanned from 250 to 750 nm. The concentration of chlorophyll a was calculated using the equation of Porra and the contents of UVAC per fresh mass were estimated by determining the ratio of UVAC to chlorophyll a according to Dunlap et al and multiplying the ratio of chlorophyll a content to fresh weight of the sample used.

羊栖菜的生长是通过每两天测量一次藻体的湿重来测定的，光合放氧是用Clark型氧电极测定的，为了测定藻体叶绿素a和紫外吸收物质的含量，从250 nm到750 nm对羊栖菜的甲醇提取液进行扫描，叶绿素a的浓度用Porra的公式计算，紫外吸收物质的计算是根据Dunlap的方法先计算紫外吸收物质和叶绿素a的比率，然后乘以每单位藻体叶绿素a的含量。

When the concentration of sulfur dioxide was fixed, the reaction rate increased separately with increasing oxygen content and water vapor content, when oxygen content was 20%, the reaction rate was the highest, while water vapor content was 444μmol/L, there was an optimum value for the photocatalytic degradation rate of heptene.

庚烯的降解速率随着二氧化硫浓度的增加而增加，最终趋于稳定。在二氧化硫浓度一定时，庚烯的反应速率分别随着氧气和水分子含量的增加而不断增大，氧含量为20%时速率最大；水分子含量为444μmol/L时速率最大。

In combination of oxygen nonstoichiometry data determined using the iodometric titration, the oxygen chemical diffusion coefficient D〓 for YBa〓Cu〓O〓 is calculated. D〓 takes a value of 7. 8×10〓 at 650℃ and 2. 0×l0〓cm〓s〓 at 800℃, and the associated apparent activation energy is 51±0.9 kJ·mol〓.

根据Fick第一定律，结合氧渗透率数据及氧非化学计量数据，可计算出YBa〓Cu〓O〓的氧化学扩散系数D〓在650～800℃，D〓为7.8×10〓～2.0×10〓cm〓，D〓的表观活化能为51±〓0.9 kJ·mol〓。

The oxygen nonstoichiometry values of the materials were measured by iodometric titration method. The results indicate the oxygen nonstoichiometry of doped LaCoO3-δ ceramics increase with increasing Co/Fe ratio.

采用碘滴定法测定了合成氧化物的氧非化学计量值，结果说明氧空位浓度随掺杂铁含量的提高而降低。

Art of lavement of high capacity complete lung is the method of a kind of safety, effective remedial dirt pneumonia, but art hind is easy appear the complication such as retention of disease of low oxygen blood, carbon dioxide, home undertakes oxygen cure in the convention after art only.

概要： 大容量全肺灌洗术是一种平安、有效的治疗尘肺病的方法，但术后易出现低氧血症、二氧化碳潴留等并发症，国内只在术后常规进行氧疗。

We report a 36-year-old man with MELAS in whom a 5-month course of high-dose oral idebenone, a derivative of coenzyme Q10, increased markedly cerebral metabolic ratio of oxygen and oxygen extraction fraction without increased cerebral blood flow with PET.

我们报告了一例36岁患MELAS（线粒体脑肌病伴高乳酸血症和卒中样发作）的患者，在口服一种辅酶Q10衍生物艾地苯醌后，显著地增加了氧气和氧提取部分的比例而同时不增加患PET症的患者的脑血流量。

Kinds of metallorganic complexes were synthesized. Two kinds of them, namely ［Ru3］(ClO4)2 and Pt were selected as oxygen-sensing indicators for excellent characters.Optimal technology for preparation of oxygen-sensing films with high sensitivity, rapid response and excellent photostability was developed.

通过试验确定了制备氧感应膜的最佳方法，制成了两种灵敏度高、响应快、光学稳定性好的氧感应膜：［Ru3］(ClO4)2-Cab-O-Sil-silicone膜和Pt-silicone膜。

The chemical oxygen demandedCOD_(Mn and biochemical oxygen demanded(BOD_5) in the shrimp pond water during the culture of Penaeus monodon was determined in this paper.

研究了有益微生物制剂调控下，斑节对虾生长周期内，池水中CODMn和BOD5的变化规律。

The protection layer is a layer of polyvinyl alcohol oxygen, mainly to the oceans that oxygen on monosomic or oligmer inhibition.

爱护层是聚乙烯醇隔氧层，次给是用于隔绝氧不对单体或齐聚物的阻聚功用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。