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The result shows that: The variation rhythm of the sensitivity index changed unanimously for Jensen,Blank and Stewart water production functions of spring wheat in Liangzhou city,the volume is small in the former stage,then become large at the middle stage,and less at the last stage. Jensen and Stewart water production functions are better of spring wheat in Gulang County in 1987-1989. The Variation rhythm of water deficiency sensitive index is unanimous: the volume are small at first,then large at middle,and diminish at last. The Variation rhythm of water deficiency sensitive index is unanimous in Jensen,Blank and Minhas of flax in Liangzhou county in 1987-1989. The water deficiency sensitive index in Gulang district in 1987-1989 models bad,are too many minus. 3 Establishing the non-linear model to definitive the irrigation quota and dimension of single crop,according the three prototype Precipitation,allocating the limited water optimally according to full water supply,95 percent,75 percent and 50 percent. Economy benefit is the biggest aim function,so getting three groups for irrigation quota,irrigation dimension and benefit,the biggest benefit is the most optimal result.

结果表明:1985-1986 年凉州春小麦Jensen 模型、Bl(来源:10a1ABC论文网www.abclunwen.com)ank 模型和Stewart 模型的敏感指数变化规律接近一致,在前期较小,中期增大,最后再减小。1987-1989 年古浪春小麦水分生产函数以Jensen 模型和Stewart 模型拟合较好,其敏感指数变化规律比较一致,敏感指标值前期较小,中期增大,后期又减小。1983-1985 年凉州亚麻水分生产函数以Jensen 模型、Blank 模型和Minhas 模型敏感指标值变化规律比较一致:先减小,后增大,最后再减小。1987-1989 古浪亚麻敏感指数出现负值较多,模型拟合较差。3 建立单作物种植条件下灌溉定额与灌溉面积的确定的非线性规划模型,将有限的水量按照充分供水,95%、75%和50%供水来分配水资源,以经济效益最大为目标函数,得出三组灌区灌溉面积和效益结果,其中以效益最大为最优解。

It was shown that the matrix suction decreased with the increase of the water content and density. The relationship among temperature, density, matrix suction and water content was exponential.

试验数据分析表明:基质吸力随含水率的增大而减小;基质吸力随密度的增大增大:温度、密度、基质吸力与含水率之间符合幂函数的变化关系。

The result of frequency response analysis shows that when the modulation frequency of incident radiation increases, the phenomenon that the response of detector lagging behind the variation of radiation becomes evident, the temperature variation range in pyroelectric thin film decreases, but the variation velocity increases, so the current resulting from pyroelectric effect increases.

频率响应分析表明:随着入射辐射调制频率的增大,可以观察到探测器响应的滞后现象越来越明显,热释电薄膜中的温度变化范围减小,但变化速率增大,因此探测器的热释电电流增大

It is found that in certain water ratio and consolidation pressure, the values of initial elastic modulus and principal deviator stress increase with intermediate principal stress increasing; in certain intermediate principal stress, the values of initial elastic modulus and principal deviator stress increase with water ratio falling.

试验结果表明:在一定的含水率和固结压力下,偏差应力和初始切线模量均随中主应力比b的增大增大;在中主应力比b确定的情况下,偏差应力和强度最大值随着含水率的增大而减小。

When TiO〓 content is increased, the surfacial energy formed by crystals may be reduced, the devitrification degree, strengthened and the content of wollastonite in crystal phase raised; if Cr〓O3〓 content is increased, the crystal size is enlarged, and the content of diopside in crystal phase, raised; if the sulphide content is increased; the reduction atmosphere is heightened and the content of wollastonite become bigger.

晶核剂浓度研究表明,晶核剂浓度不同,对基础玻璃析晶强度,晶相含量和晶体尺寸有一定的影响,当TiO〓含量增加时,可以降低晶体形成的表面能,析晶强度增大,晶相中硅灰石含量增多;Cr〓O〓含量增加,晶体尺寸增大,晶相中透辉石含量增加;硫化物增多,还原气氛增大,同时硅灰石含量增多。

In other words, the increase of confining pressure can suppress as well as induce the effect of dilatancy softening of frozen soil.

随围压的增大,冻土的强度增加,但随着围压的进一步增大,强度出现降低的趋势,也就是说围压的增大可以抑制冻土的膨胀软化效应,也可以诱导冻土的膨胀软化现象。

With the increasing of the rock detritus content, the uniaxial compressive strength and Young's modulus increase; the elastic strain energy index and bursting energy index of studied the rocks increase; the duration of failure decrease.

随着碎屑颗粒粒径的增大,即由砂质泥岩、粉砂岩向砂岩过渡,粗粒的粒柱状矿物逐渐增加,而细粒的片状矿物逐渐减少,岩石的强度和刚性增强,在集中应力作用下,弹性能指数增大,发生脆性破坏的可能性增大及破坏持续的时间变短也更猛烈,岩石的冲击倾向性增强。

The change trends of the angular size of the blur spot θ with the f-number and half-field angle uP were concluded.

弥散斑的角宽度θ随着半视场角uP的增大增大,随着系统f数的增大而减小。

The influence of magnetic field intensity on bed structure, pressure drop, minimum fluidization velocity, transition velocity, and liquid holdup were investigated.

试验结果表明,固含率轴向分布基本均匀,径向为"扁-陡曲线"分布。固含率随磁场强度和颗粒尺寸的增大增大,随液体粘度和空塔液速的增大而减小。

The experimental investigation shows that the size of the flattop profiles and the distance between the two positions decrease with the increase of the spatial coherent length and the obstruction ratio of the annular aperture .

研究表明,两处平顶光束的大小及两处平顶光束之间的距离随着空间相干长度和环形光阑拦截比的增大而减小,随聚焦透镜焦距的增大增大

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