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The theology of the gelled oil is modeled based on Bingham model, yield stress varies with time.

停输后原油的流变性方程采用宾汉模型，并考虑屈服应力的逐时变化。

The dynamic analysis based classification method in the early stage of development is brought forward in the first time ,which consists of:firstly ,the material balance equation and the binomial production equation is solved together for those wells with stable production., to yield the anticipation under constant production ,and constant THP afterwards; Secondly, the R/S fractal method is used to demonstrate the declining tendency for those withdegressive production, and the GM(1,1) model is adopted for simulation and anticipation.

在此基础上进行了定产量／压力条件下的动态预测；②对产量递减井，采用分形理论中的R／S方法，对气井产量变化作了连续趋势性论证，在此基础上采用GM(1，1)模型对递减气井的生产动态进行快速拟合和预测。

The whole-cell biocatalyst showed a good catalytic capability for repeated use, and the yield of methyl esters could still maintain 82% after it was used for 4 times.

全细胞生物催化剂在反应4次后甲酯得率仍可保持在82%，显示出良好的重复催化性能。

In the literature in China, most of the related work in biochemical engineering are experimental models based on the lab data, which are hard to explain the nonlinear oscillatory phenomena, and most of the work in biomathematics consider the yield functions as constant, linear functions, or some special cases of our general function.

工程界对于连续发酵的非线性振荡方面的研究大多是采用从实验数据归纳出来的经验模型，很难反映过程的本质；生物数学界有关这方面的模型，其中的函数大多数是文的特例。

Department of forest sciences is primarily dedicated to education and research in forest sciences including developing forest ecosystem management, improving forecasts of forest growth and yield, designing cost-effective forest regeneration practices, natural resources management, biometeorology, soil microbiology and biochemistry, horticulture and agronomy, animal science.

森林科学系主要致力于森林科学的教育及研究，其科学领域包括发展中的森林生态系统管理，改良森林生长和生产量的预测，森林重建实践的成本有效设计，自然资源管理，生物气象学，土壤微生物学和生物化学，园艺和农学，动物科学。

The yield of biotype fertilizer I treatment is higher significantly than other treatments.

减少化肥用量的生物型肥处理与常规施肥相比，氮、磷、钾的利用率分别提高11.8%、18.9%和26.6%。

Using DMA as solvent and NEt〓 as base, the yield of biphenyl was up to 94% after 4h at 132℃.

当溶剂为DMA、碱为三乙胺时，碘苯在132℃反应4小时，联苯产率达94%。

Under the optimum conditions, the yield of bitter almond oil was 52.98%.

在此条件下苦杏仁的出油率为52.98%。

Factors influencing oil yield of bitter almond extracted by supercritical CO2 were studied with both single factor and orthogonal experiment.

该研究以单因素试验和正交试验相结合的方法对苦杏仁脂肪油的超临界CO2萃取工艺进行了研究。

Under the optimum conditions, the yield of bitter almond oil was 7.25‰.

在此条件下精油得率为7.25‰。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。