相关关系

In theory we require linear independence among variables used as inputting or outputting of BP net when we model the mineral processing plant with BP net. However it is always definite relativity in inputting variables or outputting variables in modeling of the mineral processing plant, which sets definite obstacle in high quality modeling.

在应用BP网络建立选矿厂数学模型时，理论上要求作为BP网络的输入变量之间或输出变量之间应是线性无关的，而选矿厂数学建模中，输入变量之间或输出变量之间往往存在着一定的相关关系，这对建立高质量的模型设置了一定的障碍。

N uptake rate of high-responding eultivars increased significantly with increasing N rate, while their total root length exhibited a comparatively lower variation.

水稻氮积累总量与总根长和平均吸氦速率的相关关系的分析结果表明，平均吸氮速率对水稻苗期获取氮能力的贡献率大于其总根长的贡献率。

Present the rebounding ratio, and analyse the relationship of degree of slope,rebounding value and stability, point out that rebounding ratio is a important factor of effecting the stability of slope, and discuss the relationship of lumpiness ,rebounding value ,rebounding ratio, JRC ,height of slope and the degree of slope, confirm the influencing degree of all kinds of factors to the degree of slope, and the order is lumpiness,rebounding value,rebounding ratio,JRC and the degree of slope.

提出了回弹比，分析其与坡度、稳定性间的相关关系，指出回弹比是对边坡稳定性影响的一个重要因素。确定了各因素对坡度的影响的重要性依次是块度、回弹值、回弹比、JRC和坡高。

In this paper, the evapotranspiration of spring wheat in Horqin sandy cropland was estimated and measured continuously by Bowen ratio energy balance approach and Lysimeter,and the relationship between the changes of the soil water content caused by irrigation and rainfall and evapotranspiration of spring wheat was analyzed.

运用波文比—能量平衡法和大型蒸渗仪对沙地春小麦的蒸散量进行了连续的测定和估算，并对由于降雨和灌溉所引起的土壤有效水分变化与沙地春小麦蒸散量之间的相关关系进行了初步探讨。

MacIntyre (1994) notes that language anxiety is a factor that influences language learning strategy use.

MacIntyre(1994)指出，焦虑会影响学习者对策略的使用，MacIntyre and Noels(1996)发现语言焦虑和语言学习策略的使用之间存在负相关关系。

2As for cement-soil of different dates or formula, it is shown by the results of testing that their macrophysics indices correlate closely with the structural indices. Moreover, the micro-structural change under the unconfined compression is revealed.

分析了不同龄期、不同配方下的水泥土样宏观力学指标与其微结构参数——平均结构因子' F 、各向异性系数 A 、平均形状因子' f 的紧密相关关系，同时揭示了水泥土芯样在无侧限抗压过程中强度破坏的内在微观机理。

The invention discloses a method for measuring seawater chemical oxygen demand by photometry, wherein the seawater exemplar is first pre-processed, then using the basic potassium hypermanganate as reaction system, the potassium permanganate is deacidized quantitatively by organics to produce manganate, using pure water or margin solution as reference ratio, measuring the absorbance an of the manganate at its maximum absorbing wave length 430 nm, drafting the A-COD value operating curve, obtaining the concentration of the organics in the water, i.e.

本发明公开了一种对海水化学需氧量进行测定的光度测定法，该方法首先将海水样品进行预处理，再以碱性高锰酸钾为反应体系，这样海水中的有机物在强碱性介质中与过量的高锰酸钾迅速反应，高锰酸钾被有机物定量还原后生成锰酸盐，以纯水或空白溶液作参比，在锰酸盐的最大吸收波长430nm处测其吸光度A，该吸光度A与海水样品中的有机物的含量具有正相关关系。

An experimental correlation formula is obtained, and the maximum relative error between the calculated and the experimental results is within ±10%.

实验表明，液膜波动和减薄组合参数与电压之间存在良好的相关关系，得出了实验关联式。

In order to fully evaluate fund managers' speculative behavior,this thesis would estimate fund managers' speculative risk via the measure of systematic skewness.

研究发现，在熊市基金经理往往承担着更多的投机风险，基金投机风险的变化与基金绩效的变化呈负相关关系。

This paper presents one quick monitoring technology (Chronoelectrogravimetry monitoring technique) of water scaling power which combines quartz crystal microbalance technology with three electrodes electrochemical technology. The sensitivity and repeatability of the method, the relation with the RSI scaling index and the influential effects of this method are studied in this paper.

本文建立了一套采用石英微天平技术及三电极电化学技术相结合的快速测定水质结垢能力的装置，并且对这一方法的灵敏度、重现性、与雷氏指数的相关关系及其影响因素进行深入研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。