Positron emission tomography imaging was performed to measure specific microvascular blood flow at rest and during pharmacological vasodilation by IV dipyridamole.
在患者安静状态下和在使用潘生丁时，用正电子发射断层摄影测量其特殊微血管血流速。
The relevant to the emission file of greenhouse gas, include the production flow chart, energy flow chart, and information flow chart of greenhouse gas which must cover over one year.
温室气体排放管理相关资料，包括生产流程图、能源流程图、以及温室气体资讯流程图数据覆盖时期一般不低于一年。
The performance and emission characteristic of internal-combustion engine is decided by the reciprocity of the intake flow, in-cylinder mix and combustion process.
内燃机的性能与排放特性主要由进气流动、缸内混合和燃烧过程间复杂的相互作用所决定。
In this paper, the influence of flow coefficient of injector hole, hole diameter and needle lift on emission is studied through contrast experiment of different injectors.
本文通过对柴油机配置不同喷油器所进行的排放对比试验，研究分析了喷油器喷孔流量系数、喷孔直径、针阀升程对排放的影响。
This paper describes the design of a total flow dilution system for the engine particle emission measurement. This system meets the requirement of vehicle engine emission measurement.
本文设计了一种发动机排放测量全流稀释系统，可以满足车用发动机排放测量需要。
The results show that the emission level of the cyclic flow reversal combustion is lower than that of one-way flow combustion.
结果表明，相对于单向流动，往复流动有更好的燃烧排放效果。
So flow in diesel engine affects dynamic performance, fuel economy, burning noise and emission formation etc, moreover directly affects reliability and durability of diesel engine.
因此，柴油机的流动不仅关系到柴油机的动力性、经济性、燃烧噪音和有害废气生成，而且还直接影响到柴油机的可靠性和耐久性。
Objective to explore the value of single photon emission computed tomography (SPECT) cerebral blood flow in detecting the cognitive ability of patients with transient ischemic attack (TIA).
目的探讨脑单光子发射断层扫描(SPECT)血流检测对短暂性脑缺血发作(TIA)患者认知障碍判断的价值。
The electron emission film can restrict the field intensity to a low level when it causes an emission current to flow, and has a uniform electron emission characteristic.
该电子发射膜可以在其使发射电流流动时将场强限制为低水平，并且该电子发射膜具有均匀的电子发射特性。
These conclusions can effectively guide the manufacture of this flue gas generator and assist in optimizing the flow field and decreasing the NO_x emission.
通过分析研究得到的结论，为此烟气发生器的研制提供了理论指导，也为进一步优化流场和降低污染物排放提供了帮助。
Aiming at particulate matters sampling and analysis, a full flow dilute tunnel sampling system for vehicle emission was developed.
笔者以机动车排放颗粒物采集和分析为主要目的，开发了机动车排放颗粒物全流稀释风道测量系统。
The continuous emission process of gas bubbles under a constant gas flow rate through a single orifice immersed in a quiescent viscous liquid is studied.
考察一定流量气体，通过锐孔在静止黏性液体中连续溢出气泡的过程。
The effects of various equivalent ratios, circulating cycle time and gas flow velocity on the temperature distribution and pollutant emission are analyzed.
试验研究了当量比、切换半周期、空截面流速三个影响参数对温度分布的影响规律，以及燃烧器污染物排放的特点。
The greatest advantage of semi-solid rheological forming process is that process flow short, low production costs, in line with the requirements of energy-saving and emission reduction.
半固态流变成形的最大优势是工艺流程短、生产成本低，符合当今时代节能减排、绿色铸造的要求。
A new method for determining trace-level copper ion was proposed based on flow-injection on-line preconcentration and microwave plasma torch atomic emission spectrometry.
基于流动注射-在线柱预浓集-微波等离子体炬原子发射光谱，对在线浓集测定流路和各种测试条件进行优选，建立了一种测定痕量铜的新方法。
Subsequently, the distribution of noise emission sources within the flow field was found by using FW-H equations, based on a shear-layer noise model.
然后采用基于FW - H方程的剪切流噪声模型，求解了蒸汽流场内的噪声源幅度分布。
Computer fluid dynamics (CFD) is adopted to simulate the flow fields of a catalytic converter while researching the working process of an emission postprocessor.
运用计算流体动力学对汽车排气催化转化器气流特性开展数值模拟。
The effect of O 2 flow rate on the background emission and some atomic and ionic lines in the new source is exploited in this paper.
本文主要探讨了屏蔽气氧气流量变化时对该新光源背景发射光谱及某些元素的原子线、离子线发射的影响。
The utility model discloses a tool for a smoker to control the dust release, composed of a paper smoke-filtering bag and a smoke guiding device controlling the flow direction of the smoke emission.
一种吸烟者用以控制其烟尘释放的器具，由纸质滤烟袋和控制烟气排放流向的导烟装置所组成。
Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole.
钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。
Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole.
钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。
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