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A series of new failure criteria and yield criteria between the single-shear theory and twin-shear theory can be introduced from the unified strength theory.

统一性，即将以前相互没有联系的概念、方法、理论、现象等统一起来，这是一个科学理论美的重要特点之一。

Mathematic models between yield and N fertilizer and plant density for two peanut variety types were set up by using quadratic saturation D-optimization design under single-seed planting.

采用二次饱和D—最优设计建立了精播条件下不同类型花生品种N肥用量和密度与产量的数学模型，探讨肥料与密度的产量效应及优化配置。

A HCHO single-pass yield of 14.2%can be achieved using this system.

我们推测这是导致纳米粒子物种活性更优的重要原因之一。

By using statistical analysis to the economical efficiency of fish yield in three kinds of rearing techniques,following results were octained:(1)The technique of one rearing cycle per year in polyculture with Grass Carpand Silver Carpas the main species could be considered the advanced technique of pond adult fish culture.

通过各种饲养技术不同鱼产量的经济核算结果的比较分析，证明草鱼与白链为主的单季饲养技术是经济效益较高、生产可行性较好的优势技术，应作为池塘成鱼饲养的发展重点。在一定范围内亩净利润与亩净产呈紧密正相关，为了提高池塘成鱼饲养的经济效益，生产上应推行亩净产300-1000公斤的高产技术。

Under distillation conditions, including a bottoms temperature of greater than about 55 DEG C and less than about 75 DEG C, an overhead or side-cut distillate stream containing a purified propylene oxide is obtained with low yield loss of propylene oxide to propylene glycols and other glycol heavies.

在包括大于大约55℃且小于大约75℃底部温度的蒸馏条件下，得到含有纯环氧丙烷的塔顶馏分流或侧馏分流且具有低的从环氧丙烷转化到丙二醇和其他二醇重质的产率损失。

Eucalyptus is an important fast-growing, high yield, short-cycle industrial raw material forest in south China.

桉树为我国南方重要的速生、丰产、短周期工业原料林。

Company management style to Nai Yang and milk production mainly marketing, supported by high yield and quality of the breeding sheep promotion.

公司经营方式以奶羊及奶产品的生产营销为主，辅之以优质高产肉羊的繁育推广。

The purpose of this study is discussing the shear stress and strain rate relation under different silt allocated proportion and different water content, and the viscosity coefficient and yield shear stress are estimated.

本研究旨在探讨模型材料在不同的泥砂配比及不同的含水量下剪应力和应变率的关系，并推估其黏滞系数和降伏剪应力。

A pot experiment was set up to investigate the effects of different organic fertilizers on soil microbial biomass and yield of peanut. The results show that economic and biologic yields of peanut are improved by applying fertilizers.

通过盆栽试验，采用平板计数法和DGGE分析法，研究施用化肥与不同来源的有机肥对土壤微生物生物量及花生产量的影响。

In the pot test, with the hybrid mid-rice Liangyoupeijiu as material,4 soil water potential (flooding, 0,-30 and 60 kPa) and 5 nitrogen levels (0, 1.5, 2, 2.5 and 3.0 g/pot) were set up to study the effects of water and fertilizer coupling on growth characters and yield of rice.

方法］在盆栽试验中，以杂交中稻两优培九为材料，设4种土壤水势（淹水、0、-30和-60 kPa）和5种氮肥水平（0、1.5、2、2.5和3.0 g/盆），研究水肥耦合对水稻生长性状及产量的影响。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48