根据州数据和新闻报道,就燃烧面积而言,最近的野火是加州有史以来最严重的几次野火。
Some recent wildfires are among the biggest ever in California in terms of acreage burned, according to state figures and news reports.
其中一处火灾点已经扩大了其一倍的范围,燃烧面积达一万英亩。
One fire doubled in size and has now burnt over 10,000 acres.
根据装药几何形状,导出了在火箭发动机工作过程中燃烧面积及通道截面积变化规律的计算公式。
The area calculating formulas of burning surface and channel section have been derived by the grain geometry.
本论文通过正交实验从燃气压力、水流量、进风口面积和排烟口面积这四个因素中找出了影响强制平衡式燃气热水器的燃烧和热工特性的主要因素。
Through the orthogonal experiments, the author found out the major factor affecting the combustion and thermal characteristics from the gas pressure, water flow, air-inlet area and fume-exhaust area.
本文介绍了喷管喉道高度为0.3毫米、面积比为30的燃烧驱动CO_2气动激光器的某些实验结果。
This paper describes a combustion-driven CO2 gasdynamic laser with a throat height of 0.3mm and an area-ratio 30 grid nozzles, and presents some experimental results.
计算结果表明,燃烧室通道截面积、通道倾角、通道形状、通道布置对气流运动的形式及气流速度均有较大的影响。
It is concluded that the combustion chamber passage area, passage direction, passage shape and passage position have a strong effect on in-cylinder current motion and flow speed.
泄爆诱导流动通过加速火焰传播、加剧火焰变形、增大火焰面积对容器内燃烧产生增强作用,泄爆流动大小主要由泄爆面积决定。
The venting induced flow result in the flame acceleration, deformation and area increase, and the strength of venting induced flow is dominated mostly by the venting area.
而溶液燃烧法样品虽然在高温焙烧前比表面积最小,在高温焙烧后比表面积几乎没有发生衰减,表现了优异的热稳定性。
While the samples prepared by solution combustion have little surface area decay, behaving greatly high thermal stability, although they have the least surface area before calcining.
森林大火已经吞噬了相当于旧金山面积大小两倍的地区,而且火势不减,仍在燃烧。
It has already consumed an area twice the size of San Francisco, and still it burns.
文章提出了一种定量计算燃烧室壁面积炭层厚度和积炭表面时态温度的方法,并依据测量数据给出了研究结果。
The paper put out an analytical method to compute the deposit thickness and the instantaneous temperature of the deposit surface, and obtained the computing results.
石油焦的燃烧具有分形动力学的行为特征,且表面分形维数的变化趋势和比表面积和孔容积不同。
The fractal characteristics of petroleum coke combustion are validated, which proves that the change of surface fractal dimension differs from that of specific surface area and pore volume.
并测量了气缸盖鼻梁区和活塞燃烧室表面的瞬态热流,结果表明燃烧室受热表面积炭层的存在对工质与燃烧室各零件间的瞬态传热表现出强的闭塞作用。
The results shoW that the carbon deposit layer on the combustion chamber has strong isolative effect on the transient heat transfer between working medium and the parts of combustion chamber.
在文中所研究的引射燃烧室结构条件下,存在一个最佳二次喷管出口面积,它能使引射火箭的推力达到最大。
There exists an optimal exit area of secondary nozzle to result in a maximum thrust of rocket ejector in the light of the investigated ejector chamber structure.
由于采用了上述技术方案,本发明具有使空气和煤气混合效率高,燃烧时火焰长度短、火焰截面积大的优点。
The invention adopting the technical scheme has the advantages of high mixing efficiency between air and gas, short flame length during the combustion and large section surface of flame.
通过试验找出了诸因素对怠速排放污染物浓度的影响规律,如混合气质量,点火,发动机转速,冷却水温度及燃烧室表面积炭等。
These factors are mixture concentration, ignition advance Angle, engine speed, temperature of cooling water and carbon deposit on the SUrfaces of the combustion chamber, etc.
通过对石油焦燃烧过程中不同燃尽率焦样的比表面积和孔容积的测定,表明石油焦的比表面积和孔容积先增大,后减小到一定数值,最后再增大。
According to measurements, the specific pore surface area and pore volume of petroleum coke (PC) during combustion were found to: first increase, then decrease and increase again.
在该模型中考虑了底排出口面积比,排气固相颗粒质量比,燃料热值,燃气分子量,燃烧室总温,飞行马赫数等因素。
In the model the exit area ratio, solid particle mass ratio, fuel enthalpy of combustion, jet gas molecular weight, chamber stagnation temperature, flight Math number etc. have been considered.
当宽松的睡衣是由天然纤维如棉花制成时,着火时,燃烧迅速,有潜在的对儿童身体造成大面积严重烧伤的风险。
When loose-fitting sleepwear is made with natural fibres such as cotton, they can burn rapidly, potentially resulting in severe burns to large areas of the child's body.
当宽松的睡衣是由棉或人造丝等天然纤维制成时,一旦点燃将会迅速燃烧,可能造成儿童身体的大面积严重烧伤。
When loose-fitting sleepwear is made with natural fibres such as cotton or rayon from bamboo, they can burn rapidly, potentially resulting in severe burns to large areas of the child's body.
独特的大燃烧室设计,增加了炉膛辐射受热面积、缩小了锅炉的体积,降低了。
The unique big combustion chamber design, increased the chamber radiation heating area, reduced the boiler volume, reduced Nox discharging;
文章提出了一种定量计算燃烧室壁面积炭层厚度和积炭表面时态温度的方法,并依据测量数据给出了研究结果。
The results showed that when the combustion chamber wall was coated with deposits, the measured temperature fluctuation and me...
文章提出了一种定量计算燃烧室壁面积炭层厚度和积炭表面时态温度的方法,并依据测量数据给出了研究结果。
The results showed that when the combustion chamber wall was coated with deposits, the measured temperature fluctuation and me...
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