f ratio中文是什么意思

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中文翻译
造句

f比率
方差比

f F,F/f, f/,f., f: etc. 见 f-nu ...
ratio n. (pl. ratios) 1.比，比率，比值；比例 ...
f-ratio f 比；变方比
a ／ f air fuel ratio 空气燃料混合比
photographic f-ratio 照相
quasi f ratio 拟似
spectrographic f-ratio 摄谱仪
variance ratio test f 检验
f F holes (提琴上的) F 形孔眼。 F sharp (F#]) 升 F 调。 F ＝ 1.【化学】 fluorine. 2.【生物学】 (generation of) filial offspring; 【植物；植物学】子代〔F1 杂种子1代； F2 杂种子2代〕；【动物；动物学】世代〔cf. f ＝ force〕。 F,F/f, f/,f., f: etc. 见 f-number 条。
t of f fallot]法乐四联症; 法乐四联症
as ratio 联想感觉比
ratio n. (pl. ratios) 1.比，比率，比值；比例；系数。 2.【经济学】复本位制中金银的法定比价。 the ratio 3:2 (读作 the ratio of three to two )3对2之比。 arithmetical ratio 公差，算术比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 电流比，电流变换系数。 nutritive ratio 营养率。 vt. 1.用比例方式表达；求出…的比值；使…成比例。 2.将(相片)按比例放大或缩小。
ratio t 统计系数与标准误差比率
t ratio 统计系数与标准误差比率
f-block elements f 区元素
f-bolt f 型插销
f-f cavity preselector 射频空腔预选器
f-head cylinder f 型缸盖气缸
f-head engine f 型发动机; 型汽缸盖发动机
f-number f 数，光圈数
f-stop f 制光圈
f-test f 检验
f-zero f-zero 最高时速
inverse of function f f 的反函数
one-hop-f f 电离层一次反射波

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例句与用法

For better performance on emission , there is an electronic device to loop control a / f ratio
为了改善排放效果，增加了空燃比电控系统，闭环控制空燃比。
This experiment studies the relation of ionic current signals and a / f ratio on different premixed pressure
通过控制预混压力和空燃比两个参数变化，消除了由于发动机循环变动对燃烧状态和离子电流强度的不稳定影响。
The motor special impulse can be enhanced with the best o / f ratio reduced by increasing the concentration of hydrogen peroxide or adding aluminum powder in the fuel
提高过氧化氢浓度或在燃料中添加铝粉可以降低最佳配比，并提高发动机的比冲。
The research of propellant energy performance indicates that the special impulse and characteristic velocity are significantly depended on o / f ratio and weakly depended on chamber pressure
过氧化氢和pe燃料组合的能量研究表明：发动机的比冲和特征速度与配比密切相关，与燃烧室压强关系不大。
The results show the ionic current signals can be used to detect the a / f ratio , which provide the basis investigation for the application of ionic current in engine
分析了空燃比、预混压力变化与离子电流信号的关系，试验研究表明离子电流法可用来检测空燃比，为在发动机上的应用提供了基础性研究。
The combustion model of the oxidizing gas and the fuel pyrolytic gas in the motor was also developed . the simulation of combustion flow is performed under various o / f ratios and different motor chamber structures
建立了发动机内氧化剂气体和燃料热解气体的燃烧模型，并对不同配比条件和不同燃烧室结构的燃烧反应流进行了计算。
The results of research indicate that the pressure , the thrust and the fuel regression rate of the motor decrease while the o / f ratio increasing with the burning time lasting . the special impulse reduces when throttling
研究结果表明：压强、推力和燃料退移速率随发动机工作时间增加而降低，氧化剂和燃料的配比升高；节流时，发动机比冲降低。
Then it was used to estimate self - purification capacities , environmental capacities , surplus environmental capacities , budgets , and residence times of din and po4 - p in jiaozhou bay . new production and f ratio in jiaozhou bay were also discussed by application of the model
应用该模型对胶州湾din和po _ 4 - p的自净容量、环境容量、剩余环境容量、收支状况、逗留时间以及胶州湾的初级生产力、新生产力和f比值进行研究，主要结论如下： 1
The simulations results show that the average combustion temperature is much lower in fuel - rich state and little higher in oxygen - rich state near the best o / f ratio . by extending the post - chamber length the oxidizing gas and the fuel pyrolytic gas can burn completely and the average combustion temperature can be prominently increased . the fuel - rich recirculation zone close to the head of combustion chamber is very important for the combustion
计算结果分析表明：发动机在富燃状态下平均燃烧温度偏低，在接近理想配比的富氧状态下平均燃烧温度有所提高；加长补燃室可以大幅度提高发动机的平均燃烧温度，并促进氧化剂气体和热解气体的充分燃烧；燃烧室头部的富燃回流区对发动机的燃烧非常重要，去掉燃烧室头部突扩段后，氧化剂气体和燃料热解气体不能充分燃烧，发动机的平均燃烧温度大幅下降。