The tests were carried out in a constant volume tunnel in which the flow velocity, the environmental density and its temperature can be changed.
试验在专门研制的可变流场速度、可变环境密度和可变环境温度的定容风洞中进行。
Environmental stochasticity, This is a nondeterministic, unpredictable variation in the environmental conditions, resulting in a changing equilibrium density.
环境随机变化。环境条件非确定性的、不可预见性的变化会导致平衡密度的变化。
You can use this to experiment with some of the environmental factors that affect an aircraft in flight, including temperature, pressure, density, viscosity and gravity.
你可以运用这些设置来实验影响飞机飞行的环境因素，包括温度、压力、密度、粘滞度和重力。
Comparing the correction result with that of wireline density logging, its relative error is less than 5%, which can meet the index requirement for LWD environmental effect correction.
校正结果与经过偏心影响校正的电缆密度测井相比，其相对误差小于5%，达到了随钻测井环境影响校正指标的要求。
Objective To establish Anopheles minimus density evaluation model based on climate, environmental and remote sensing data.
目的借助气象、环境与遥感监测指标建立微小按蚊密度评价模型。
Controlling livestock grazing density and implementing environmental restoration are important measures for soil and water conservation in Iceland.
控制放牧密度和开展环境修复是冰岛最主要的水土保持措施。
The results present thrust, specific impulse and thrust efficiency of the thruster under various environmental pressures, as well as impulse density distribution on the exit plane.
计算结果给出了不同环境压强下推力器的推力、比冲、推进效率和出口平面冲量密度分布。
To prevent reduction of bone density, we should perform between the heredity factor and environmental factor, which may be effective to prevent and treat osteoporosis.
要防止骨密度的下降，应从遗传因素和环境因素加以控制，可以有效的防治骨质疏松症。
There are many colleges and research institutes in the higher education cultural district, where the population density is high and the impact of the environmental pollution is wide.
高教文化区是一个城市的特定区域，区域聚集多所大中专院校和科研院所，人口密度大，环境污染影响范围广。
Siloxane was grafted on the low density polyethylene to improve the property of the environmental stress cracking of low density polyethylene.
研究了低密度聚乙烯接枝聚硅氧烷后的环境应力开裂性。
The PAHs density is far higher than the limit of"environmental quality standard of surface water"which proves that PAHs pollution of the Meiliang bay source water is serious comparatively.
其中梅梁湾水源地水体中苯并（a）芘浓度远高于《地表水环境质量标准》规定的要求，说明梅梁湾水源地受苯并（a）芘的污染较为严重。
On normal conditions, agent type can be pre-decided, however, agent density and environmental humity are coupling velated.
一般情况下，介质类型可预先确定，而介质浓度与环境湿度是相互耦联的。
To reduce environmental pollution and to increase thickening density of tailings have become the most important technical challenges facing the dressing scientific research work of Meishan iron Mine.
减少环境污染和提高尾矿浓缩浓度，已成为梅山铁矿选矿科研工作面临的最重要的技术挑战。
The classification of the corrosiveness of gaseous agents on the structural material are depend on agent type, agent density and environmental humity.
气态介质对建筑材料的腐蚀性分级决定于介质类型、浓度及环境湿度。
Adding other metals can affect the density, strength, fracture toughness, plastic deformation, electrical conductivity and environmental degradation.
加一些其它金属能影响密度、强度、断裂韧性、塑性变形、导电性以及环境侵蚀。
The grave issues involved in the current environmental dilemma include high population density, environmental pollution, an overabundant of silt in rivers and lakes, and the frequency of disasters.
但当前这一地区环境问题并不理想，人口密集、环境污染、河湖淤浅、灾害频发等矛盾比较突出。
Methods: To take the combination of environmental control, chemical control and physical control of flies to reduce fly density in large places for activities.
方法：采用环境治理、化学防制与物理防制相结合的方法，对场馆内外进行灭蝇。
This paper makes a brief introduction of density tests and sources analysis of the indoor environmental pollutants and provides treatments accordingly.
本文介绍建筑装修工程室内环境污染物浓度检测的情况，分析污染物的来源，提出解决室内装修污染的方法和措施。
In sticky oil production, economy, efficiency, environmental protection for well bore to reduce density is very important.
在稠油开采中，经济、有效、环保的井筒降粘技术是十分重要的。
Aeration method within deep well can handle organic Wastewater of high density. This method possesses an obviously environmental, social and economic gain.
深井曝气法能处理高浓度有机废水，它具有明显的环境效益、社会效益和经济效益。
Abstract: Bone mineral density (BMD), as an clinical marker for diagnosis of osteoporosis and assessment of fracture risk, is likely affected by multiple genetic and environmental factors.
摘要：骨密度是用于诊断骨质疏松症和评价骨折风险的重要临床指标，受多种遗传及环境因素共同影响。
The"vertical-component density flow water-sediment separation device"is an environmental protection device that aim at the high sediment concentration water.
本论文研究的“垂向异重流式水沙分离鳃”就是一种针对高含沙水的绿色环保装置。
The"vertical-component density flow water-sediment separation device"is an environmental protection device that aim at the high sediment concentration water.
本论文研究的“垂向异重流式水沙分离鳃”就是一种针对高含沙水的绿色环保装置。
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