mean ratio的例句大全

Comparison between calculation of Poiseuille Formula and measurement of the axial resistance in chickpea roots showed that the value of measurement was always greater than that of calculation and the ratio of the former to later increased with the increase of mean diameter of vessels in xylem.

根轴向水流阻力的泊潇叶公式计算值与实测值的比较结果表明：对鹰嘴豆根系来说，实测值总大于计算值：二者的比值随根导管调和平均直径的减少而增加。

the mean age at death was 70 years and the male-to-female ratio was 3. 6: 1.

死亡的平均年龄是70岁，男女比例为3.

study of the relationship between the ratio of bed load to suspension load and the mean velocity of flow in horizontal pipe

水平管道中推移质与悬移质之间比例与平均流速之间关系的研究

the medium with peat and yellow soil has the highest mean rooting rate which is up to 85.9% and the medium composed of carbonized tannin extract residual and yellow soil by the ratio of 1 to 1 has the lowest in 6.7%.

扦插平均生根率最高的为泥炭土+黄心土基质，生根率最低的为容积比1∶1的炭化栲胶渣+黄心土基质，分别为85.9%和6.7%；

the age range was from 2 to 12 years ( mean age, 5.7 years). the male to female ratio was 2.4 ∶ 1. accidental falls were the main cause of the fractures.

患者年龄为2～12岁（平均年龄5.7岁），男女比例2.4∶1，跌伤为首要致病原因，3～8岁年龄段发病较多。

analysis of influence on mean in-hospital day by ratio of severity

疑难危重率对平均住院日影响分析

objective: analyze the degree of impact of mean in-hospital day by ratio of severity.

目的：分析疑难危重率对平均住院日的影响程度。

sex ratio of newborn was 1.15 ∶ 1.the mean weight of birth was 3 307.21 g.

出生男女性别比为1.15∶1，新生儿出生平均体重为3307.21g。

land surface hydrology parameterization over heterogeneous surface for the study of regional mean runoff ratio with its simulations

非均匀地表条件下区域平均径流率的一种参数化方法及其模拟试验

the male to female ratio was 1:14. the mean age of the 30 patients in this research was 23.7 years ( ranging from 11 to 48 years).

结果：30例患者，男性2例，女性28例，男女比例1：14，平均年龄23.7岁（11-48岁）。

the overall male to female ratio of hip fracture was 1.2. the mean age of patients with hip fracture was 67.2 ± 9.5 years ( 67.5 ± 9.8 years for males and 66.9 ± 9.0 years for females).

总髋部骨折发病率的男／女比为1.2。髋部骨折患者的平均年龄为67.2±9.5（男性为67.5±9.8，女性为66.9±9.0）。

The flux of evapotranspiration and turbulent heat exchange are 86.2% of the net radiation of the stand on average. The mean Bowen ratio is 0.5500. The energy consumed by soil heat exchange is 13.4%.

蒸散耗热和湍流热交换占净辐射收入的86.2%，平均波文比为0.5500，土壤热通量约占净辐射收入的13.4%。

To compare with standard VQ algorithm, an experiment over 10 standard images is conducted, and the result shows that compression ratio of these images can be improved by 54 percent average, while the mean PSNR decreases 0.86 percent.

对于10幅标准图像的测试结果表明，与普通VQ相比，该文算法的压缩比平均提高54%，PSNR平均仅降低0.86%。

What is this year's Inventory Turnover ratio? What does it mean?

这年的库存周转率是多少? 这样的周转率意味着 什么 ?

Sonic noise can be solved through using arithmetic mean in place of the real numerical value to increase signal and noise ratio.

对于声噪声，我们采用算术平均值来代替其真值的方法来提高回波的信噪比，从而对声噪声进行抑制。

The result showed that the correlation ratio between actual township's total population and the total population calculated by spatialization equaled 0.91 and mean error percentage was 16.5%.

结果为通过空间化得到的各乡镇的人口数与各乡镇的实际人口数的相关系数为0.91，平均误差为16.5%。

The mean generation interval of flock is 7.270 years of the current breeding scheme and the ratio input and output is 1: 5.76. But the present use-age of dam and sire is irrational.

现行的育种方案各选择组公母牛使用年限不合理，育种成效不甚理想，全群平均世代间隔7.270年，投入产出比为1：5.76改进余地很大。

It performs better than widely used mean square error and peak signal to noise ratio.

该方法性能高于常用的均方误差和峰值信噪比图像质量评价方法,且简单有效.

The ratio ( B/ P) of mean compensation depth ( B) to mean transparency ( P) in Giant tiger prawn pond, 1.42 ± 0.53, was lower than that in fishpond ( 1.5~ 2.5).

斑节对虾塘平均补偿深度（B）和平均透明度（P）之比（B/P）与通常鱼池所具有的比值（1.5～2.5）相比偏低，为1.42±0.53。

The Results by using Pick-pick Signal Noise Ratio ( PSNR) or mean square error ( mse) are different from by subjective psychological assessment, while the latter are usually inexactly and have subjectivity.

通常使用的峰-峰信噪比或均方误差与主观感觉并不相符，而主观评价又存在主观性和不确定性，其结果往往因人而异。