New research from the US found that severe headaches such as migraine were linked to changes in weather, particularly to increased ambient temperature and to a lesser extent lower barometric pressure.
来自美国的新研究发现严重的头痛比如偏头痛和季节有联系，特别是周围环境温度增加和较小程度气压降低的情况下。
Coolant temperature and ambient air pressure may be used to optimize cold starting and altitude performance.
冷却水温度和大气压力可用于使冷起动性能和高原性能最优化。
The ambient gamma radiation levels may vary due to natural causes, which include geological and meteorological conditions such as rainfall, pressure and wind.
环境伽马辐射水平可以受地质和降雨、气压及气流等自然及天气因素所影响而波动。
Metamorphic rocks form from the alteration of preexisting rocks by changes in ambient temperature, pressure, volatile content, or all of these.
变质岩是由先存岩石在周围温度、压力、挥发物含量、或所有上述因素都变化而发生蚀变而形成的。
The maturity of a source rock reflects the ambient pressure and temperature as well as the duration of conditions favorable for hydrocarbon generation.
烃源岩的成熟度反映了周围的压力和温度以及有利于生成油气的条件的持续时间。
The pressurization system provides the pressure differential between the cabin and ambient.
增压系统提供客舱与外界环境之间的压力差。
In argon (ar) gas, nanocrystalline silicon films are prepared by pulsed laser ablation. The influence of ambient pressure on surface morphology of nanocrystalline silicon film is studied.
采用脉冲激光烧蚀技术在氩气环境下制备了纳米硅薄膜，研究了环境气体压强对纳米硅薄膜表面形貌的影响。
Based on the analysis of influence of underwater ambient pressure upon underwater hydraulic systems, the necessity of pressure compensation for underwater equipments' hydraulic systems is stated.
在分析水下环境压力对水下液压系统产生影响的基础上，说明了对水下设备液压系统进行压力补偿的必要性。
The influence of ambient pressure and temperature on the evaporation rates of fuel drops is examined analytically.
本文就环境压力和温度对燃油液滴蒸发速率的影响进行了分析研究。
The effects of ambient pressure on fuel droplet evaporation in different convective thermal environments was investigated using numerical methods.
通过建立单液滴蒸发的物理数学模型，采用数值方法研究了对流环境中压力对液滴蒸发的影响。
Based on experimental data and numerical simulation results, effects of ambient pressure and base bleed on aerospike nozzle base behaviour are investigated.
基于实验数据和数值模拟结果，研究了外界反压和底部二次流对塞式喷管底部的影响。
The cable incorporates a tube for compensation of the ambient pressure.
该电缆采用了对环境的压力补偿管。
The sulfur removal efficiency of 15% for the simulated oil and 11.8% for the gasoline are obtained in a single pass under room temperature and ambient pressure while combined suitable emulsification.
这种新型材料在常温常压下对于模拟油品中噻吩的单程脱除率在15%左右，汽油单程脱硫率为11.8%。
The results show that flame-spread rates are sensitive to ambient pressure and decreases as the ambient pressure decreases in a lower range of ambient pressures.
结果表明在低压下火焰传播的速度对环境压力敏感，即火焰传播速度随着压力的降低而降低。
Butanes and butenes can be maintained in the liquid states at ambient temperature under quite moderate pressure.
在适当的大气压力及常温下，丁烷和丁烯均可保持液体状态。
As the airplane climb, the ambient pressure decreases; the higher the altitude, the lower the pressure.
当飞机爬升时，环境压力减小，高度越高，压力越低。
In order to explore the effect of ambient pressure on jet flow field in deep well and ultra-deep well, a physical model for flow field of confined water jet at bottom hole was established.
考虑到深井、超深井中井底围压对射流流场有一定的影响，建立了井底受限射流流场的物理模型。
A fluid dynamic polymer-based contact sensor (100) measures ambient pressure (103) based on the resistivity changes across the sensor under different ambient pressures.
本发明提供了一种基于聚合物的流体动力学接触传感器(100)，其基于不同的环境压力下的横跨传感器的电阻率变化而测量环境压力(103)。
The device is readily removed and installed at ambient pressure without venting the mass spectrometer.
该设备易于在环境压力下安装和拆除，而不用对质谱仪抽气。
A small hole orifice or restrictor in a component for allowing pressure in the component to be the same as ambient pressure.
部件内，用以使部件内的压力与周围环境压力相同的小孔、或限流器。
What we define as zero is the enthalpy of every element in its natural state at room temperature and ambient pressure.
我们将零点定义为每种元素，在室温和正常大气压下，在其自然状态下的焓。
The experimental results show that, liquid sputtering velocity and distance increase with the decrease of the ambient pressure.
实验结果表明，液体的溅射速度和距离随着背景气压的降低而增加。
The company has imported advanced equipment and can produce 200-litre annular barrel by using high density polyvinyl resin which is of high rigidity and abradability and can bear ambient pressure.
该公司获得专利技术，进口设备、采用具有钢性大，耐磨性及耐环境压力等特点的高密度聚乙烯树脂生产200升环型塑料桶。
But in a higher ambient pressure, the flame-spread rates are independent of ambient pressure.
在较高压力下火焰传播速度对环境压力不敏感，即火焰传播速度几乎不随着压力变化。
The test result shows that maximum tolerance of the simulated ambient pressure deviation is about 14% under which the engine thrust uncertainty remains less than 1.0%.
试验结果表明，在保证推力不确定度优于1.0%的条件下，拉瓦尔喷管发动机高空模拟试验的模拟偏差容限约为14%。
A new kind of silicon oxidic film on aluminum was prepared by chemical vapor deposition (CVD) in ambient pressure.
本研究采用常压化学气相沉积（CVD）的方法在金属铝基底上制备出硅氧化合物陶瓷膜层。
Using black liquor of paper pulp plant as catalyst, the steam gasification of high metamorphosed anthracites was investigated by isothermal thermo-gravimetric analysis under ambient pressure.
以纸浆黑液为催化剂，用热天平的等温法研究高变质无烟煤常压纯水蒸气催化气化反应。
It can be seen that if the engine air inlet temperature is higher and the ambient pressure is lower than the standard conditions, the power output of the effects will be lower.
可以看出，如果在发动机的进气温度较高，环境压力低于标准的条件下，输出功率的影响将降低。
It can be seen that if the engine air inlet temperature is higher and the ambient pressure is lower than the standard conditions, the power output of the effects will be lower.
可以看出，如果在发动机的进气温度较高，环境压力低于标准的条件下，输出功率的影响将降低。
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