查询词典 O2

Our corrugated arrestor with anti-exsplosion with some state of ants in British , Germany , Nloing with better manufacturing and inspection equipment,have good features , such as compact structure ,good reliability especial for H2、 O2、 LPG and so on.

我公司综合引进英国、德国等公司的先进技术，配之先进的加工设备和完善的检测装置，生产的防爆波纹阻火器，具有结构紧凑，可靠性高，阻火芯件防爆、防腐、阻火性能强、便于清洗等优点，特别适合于氢气、氧气、液化气等特殊介质。

ABSTRACT: Objective To explore the change of astrocyte in cortical and hippocampus of rats exposed Chronic hypoxic hypercapnia.

：目的 探讨星形胶质细胞在慢性低O2高CO2大鼠皮层、海马中的表达及作用。

Bernard Dunne completed a remarkable weekend for Irish sport to claim the WBA World super bantamweight title after dethroning Panamanian southpaw Ricardo Cordoba at the O2 in Dublin.

上图：上周末，在都柏林02竞技馆，伯纳德。邓恩为爱尔兰体育事业带来惊天大手笔，废了巴拿马左撇子拳王里卡多。科多巴，获得WBA超雏量级金腰带。

In this paper, the importance of denitrification in the biogeochemical cycle of nitrogen in estuaries is summarized, It introduces methods of denitrification determination, as well as their advantages and disadvantages.

本文综述了河口区域反硝化作用在N元素生物地球化学循环过程中的重要作用，概述了不同测定反硝化速率的方法，并提出了各种方法的优缺点。总结了反硝化作用的影响因素：O2浓度，NO3，有机质，温度，生物等。

3H］-TdR incorporation rate was used as an index of cell proliferation. Additionally, we investigated whether the ASMC proliferative responses to SP were modulated by preincubation for 2 h with GR71251, a specific antagonist of NK-1 receptor, and neomycin, a phospholipase C inhibitor, and nitrendipine, a blockader of Ca2+ channel, respectively.

细胞增殖实验研究：将平滑肌细胞以1×103/孔接种在96孔板内，含10% FCS-DMEM培养24 h，吸去上清，以无血清DMEM洗涤2次，加入该培养基培养48 h，同步化之后以无血清培养基继续培养48 h或分别加入含SP(10-7～10-5 mol/L)和NK-1受体激动剂［Sar9，Met(O2)11］-SP(10-7～10-5 mol/L)的无血清DMEM培养相同时间。

When the concentration of boletus Edulis Bull polysaccharide is about 0.04 mg/mL,the ability of scavenging hydroxyl radi...

OH的能力与0.02mg/mLVc的能力相当；对浓度为0.1mg/mL的多糖溶液，其清除率达到71.78%。对于O2-。自由基，在浓度为0.04mg/mL时，抑制率达到79.34%。

X-ray fluorescence spectrometer is used to measure F,Aluminum,Na,SiO2,Fe2O3,SO2-4,P2O5 and CaO elements in cryolite after sample is made by powder press sheet with boracic acid at sides and bottom,showing quicker and precise analysis.

采用粉末压片，硼酸镶边垫底的制样方法，用波长色散X射线荧光光谱仪测定冰晶石中的F、Al、Na、Si O2、Fe2O3、SO42-、P2O5、CaO等8个成分。

The experiment results prove that the boiler coking is largely reduced and the temperature difference of two sides of horizontal gas-pass is very small, when the 330MW boiler operate, the pressure of primary hot air parison is controlled beyond 12.0～12.5KPa, the O2 content of air pheheater is controlled about 3.0%, the door of OFA is opened to 30%, the buffle of the inner secondary air sleeve is adjusted to the minimum, the outer secondary air swirling strength and the baffle of the outer secondary air sleeve is regulated to the maximum and the outlet temperature of pulvervised mill is kept in 70℃.

试验结果表明，330MW运行时，一次热风母管压力控制在12.0～12.5kPa以上、空气预热器实际氧量控制在3.0％左右、燃尽风门开至30％、内二次风量套筒挡板调整在最小、外二次旋流强度和外二次风套筒挡板调整到最大、磨煤机出口温度维持在70℃，此时锅炉结焦大幅度减轻，水平烟道两侧烟温差非常小。优化试验完成后，进行了单烧灵武烟煤对比，结果是：掺烧高灰熔点的银北煤后，炉膛结焦大幅度减轻，锅炉过热器减温水量较小，主蒸汽压力易提高，带负荷能力正常；再热器烟气挡板开度较大、减温水量较小；风机电耗较小。

The SEM proved that the morphology of char formed after combustion of the samples filled with the nanoparticles showed obviously bulgy state with a densified structure, which can inhibit O2 and heat and combustion gases to go into the PVC bulk.

扫描电镜观察发现，添加纳米羟基锡酸锌的PVC燃烧残渣明显呈膨胀状态，结构最密实，起到了较好的隔氧、隔热及抑制可燃性气体逸出的作用。

The effects of temperature, feed flow rate and O2/C4H8 ratio on butene conversion and selectivity for butadiene were systematically studied.

系统地考察了反应温度、进料量、氧／烃比对丁烯转化率及丁二烯选择性的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐