优选

Completing the selection of well pattern, establishment of hydrocarbon reservoir geologic model, and calculation of fluid PVT, and triphase relative permeability determination, and reserve fitting and history matching, the programs are designed to improve oil recovery of WAG and simulate performance prediction, and also optimize the programs.

在完成井组的选取，油气藏地质模型的建立，流体PVT相态计算，油、气、水三相相对渗透率的确定，储量拟合和历史拟合以后，研究了气水交替注入提高采收率方案设计、动态预测模拟研究，实行了开发方案的优选。

There are some disadvantages in segmenting and selecting while neglecting the characteristics of satellite-based sensor, which leads to unefficient utilization of time window; the end time is easyily postponed.

目前大多数国家的卫星任务调度系统都只考虑解决点目标的观测任务，只有美、法少数几个国家研究并解决了区域目标的分割与优选问题，但现有方法对星载传感器成像特性考虑得不够，时间窗口利用率较低，易导致任务完成期拖后。

Two cowpea varieties (Vigna unguiculata W., var zaoyouNo.1 and youxuanzhijiang28-2) were used to study the membrane damage and the activities of protective enzymes in cowpea seedling leaves under high temperature (45℃/33℃).

以耐热性存在明显差异的两个豇豆品种（早优一号和优选之豇28-2）为试材，研究了高温胁迫(45℃/33℃)对其幼苗叶片膜伤害与保护性物质的影响。

The twenty-eight bacteria are cultivated and put back into waste water,the average unoiling rate can achieve to 68%.

通过 3次采自乌鲁木齐市鸿春园饭店不同时期排放的污水，经培养筛选出的 2 8株具有较强除油能力的菌种回接污水后，其平均除油率达 68%，其优选菌种回接污水 2 4h后的除油率达 90 %，而同批污水自然存放 1 0d后的除油率仅为 2 9%。

At last,through engineering actual examples,elaborates priority election of unregular flowing water construction order,so as to give a reasonable arrangement for it,and furtherly enhances the production efficiency of labor and engineering quality.

对无节奏流水施工进行了介绍，探讨了组织无节奏流水施工的要点，分析了无节奏流水施工的主要参数，提出了确定工期的方法，通过工程实例，对无节奏流水施工顺序优选进行了说明，以合理安排无节奏流水施工顺序，从而提高劳动生产率和工程质量。

Based on the theories of rheology, Non-Newtonian Fluid Mechanics, petroleum chemistry, crystallography and pipeline technology etc. and sampling Huabei crudes, experimental indexes and programmes are drew out, integrating the oil properties and parameter analysis; in terms of the macro analysis of continuum mechanics, substantial experiments are conducted with HAAKE RS600 rotational rheometer and the rheological equation as well as the viscosity-temperature equation are further developed with tested rhrogramme and viscosity-temperature curve, respectively. Beased on the researches on thixotropic mechanism and thixotropy fluid property, hysteresis loop curve, structure failure and viscosity build-up curve as well as shear stress decrement curve for one type oil are first present in this paper. According to the theoretical researches and testing results, a novel thixotropy equation with τ=τ_∞e~ pattern, which is of hi-accuracy, few parameter and simplicity, is developed. Considering the influence of various parameters on rheological behaviour, depressant adding condition is optimized and experimental evaluation on BEM-5P is conducted, which further unrip its mechanism on the Huabei crude. A corresponding viable pipe transportion programmel is also recommended.

本文基于原油流变学、非牛顿流体力学、石油化学、结晶学、原油管输工艺学等理论，以华北原油为研究对象，结合原油物性及实验影响因素分析，制定出实验研究的评价指标及实验方案；从连续介质力学宏观分析的角度，利用HAAKE RS600高端旋转流变仪开展了大量的室内实验，并运用微观研究方法，测定了油样的流变曲线和粘温曲线，建立了流变方程和粘温方程；通过对触变性机理和触变性流体特征的研究，首次对华北原油测定出滞回环曲线、结构破坏与恢复粘时曲线、剪切应力裂降过程曲线，并在理论研究和实验结果的基础之上，建立了能定量描述含蜡原油剪切应力裂降过程的新型三参数触变模式τ=τ_∞e~b/(t+c，该模型具有精度高、参数少、实验简便且适用性强的特点；通过对含蜡原油流变性的影响因素理论研究，开展了加剂条件优选及BEM-5P降凝剂室内评价实验，进一步揭示了降凝剂对华北原油作用机理，在此基础之上，提出了华北原油管输的可行性方案。

Based on the theories of rheology, Non-Newtonian Fluid Mechanics, petroleum chemistry, crystallography and pipeline technology etc. and sampling Huabei crudes, experimental indexes and programmes are drew out, integrating the oil properties and parameter analysis; in terms of the macro analysis of continuum mechanics, substantial experiments are conducted with HAAKE RS600 rotational rheometer and the rheological equation as well as the viscosity-temperature equation are further developed with tested rhrogramme and viscosity-temperature curve, respectively. Beased on the researches on thixotropic mechanism and thixotropy fluid property, hysteresis loop curve, structure failure and viscosity build-up curve as well as shear stress decrement curve for one type oil are first present in this paper. According to the theoretical researches and testing results, a novel thixotropy equationwith τ=τ_∞e~ pattern, which is of hi-accuracy, few parameter and simplicity, is developed.Considering the influence of various parameters on rheological behaviour, depressant adding condition is optimized and experimental evaluation on BEM-5P is conducted, which further unrip its mechanism on the Huabei crude. A corresponding viable pipe transportion programmel is also recommended.

本文基于原油流变学、非牛顿流体力学、石油化学、结晶学、原油管输工艺学等理论，以华北原油为研究对象，结合原油物性及实验影响因素分析，制定出实验研究的评价指标及实验方案；从连续介质力学宏观分析的角度，利用HAAKE RS600高端旋转流变仪开展了大量的室内实验，并运用微观研究方法，测定了油样的流变曲线和粘温曲线，建立了流变方程和粘温方程；通过对触变性机理和触变性流体特征的研究，首次对华北原油测定出滞回环曲线、结构破坏与恢复粘时曲线、剪切应力裂降过程曲线，并在理论研究和实验结果的基础之上，建立了能定量描述含蜡原油剪切应力裂降过程的新型三参数触变模式τ=τ_∞e~b/(t+c，该模型具有精度高、参数少、实验简便且适用性强的特点；通过对含蜡原油流变性的影响因素理论研究，开展了加剂条件优选及BEM-5P降凝剂室内评价实验，进一步揭示了降凝剂对华北原油作用机理，在此基础之上，提出了华北原油管输的可行性方案。

The present invention relates to a holder for a roll of unwindable material, in particular a holder for paper rolls, preferably for standing a paper roll vertically on a horizontal surface, with a cylindrical holding rod(1), a base(5)and an essentially known pivotal retaining arrangement for the free end of the paper roll, the object is to provide a holder in which the roll is retained on the holder in a stable manner also when different widths of paper are used, and where the cost of manufacture can be reduced through a simple embodiment and few components.

一用于可展开的材料的卷装的支架，特别是纸卷的支架，优选是使纸卷垂直立在水平表面上，其带有圆柱形支承杆(1)、底座(5)和一已知的用于纸卷的自由端的固定装置，利用这种支架，当使用不同宽度的纸卷时，纸卷能以稳定的方式被保持在支架上，通过简单的实施方式和很少的部件，制造成本能减少。

To evaluate the clinical management procedures for suitable plan of ureterocele.

目的 探讨输尿管囊肿临床处理的优选方案。

Stems and leaves were determined and compared by al(no3)3 colorimetry and hplc. the method with ultrasonic wave was applied to extract flavonoids from the leaves and stems of urtica dioical l.. with the contents of flavonoids as the index, the best extraction conditions were selected out. results the best extraction conditions were as follows:soaking the raw material with ethanol(80%, v/v)-water solution (1∶30) at 60℃.

方法分别采用al（no3）3络合分光光度法和hplc法测定异株荨麻茎叶中黄酮类化合物的含量，并对测定结果进行比较；同时以黄酮类化合物的含量为指标，优选出了超声波辅助法提取异株荨麻茎叶中黄酮类化合物的最佳条件。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。