工作条件

E. thickness of the copper wire wall, length of the single conductor wire, height of the solenoid, the exciting current and the current density, the working temperature of the conductor, time of exciting and demagnetizing, the cooling water pressure and flux density, etc..

所建立的数学模型包含3个目标函数（即能耗极小化目标函数、铜耗极小化目标函数和纯铁用量极小化目标函数）、7个设计变量（即铜管规格参数a、b、t，线圈匝数N〓、N〓，铁铠磁通密度B〓和冷却水压p）和8类14个约束条件（即铜管壁厚、单饼导线长度、螺线管高度、激磁电流与电流密度、导体工作温度、激退磁时间，冷却水压和铁铠磁通密度等约束条件）。

The range of actions taken has been wide, from those that need no change to terms and conditions such as natural wastage, reduced overtime, modified shift patterns, pay freezes, retraining and redeploying to those needing careful revision of conditions such as short-time working, annualized hours and reducing pay and/or hours.

所采取的一系列行动，已得到广泛，从那些不需要改变的条款和条件-如自然流失减少加班费，修改轮班，冻薪，再培训和重新部署-向那些需要这种短的条件仔细的修改，时间的工作，按年时间，降低工资和/或时间。

Firstly,based on the WR Sexton method,the method and mathematic models of supplementing the sub-idle rotating component characteristics is presented.Secondly,the turbofan windmilling high-low pressure rotor co-working equations and the whole engine co-working equations are established.lastly,a turbofan engine windmilling characteristics under various windmilling conditions are simulated and analyzed.

首先，基于不可压流理论，附以可压缩效应修正的指数法发展了补充慢车转速以下部件特性的计算模型和计算程序；其次，根据流量连续、压力平衡、功率平衡、燃烧室进出口总温相等及转速相等等约束条件建立了风车状态时涡扇发动机高低压转子及整机的共同工作方程；最后发展了具有一定计算精度的涡扇发动机风车状态特性计算模型和程序，并以某型涡扇发动机为例，计算分析了不同飞行条件下发动机的风车特性，从计算结果看，其趋势是合理的。

In China,with coal resource mining in deep-lying being developed,therefore,the main technology problems about prediction and control of surface subsidence are brought out.

在深部开采条件下，结合深部地质灾害的特点，总结分析了目前深部开采存在的主要问题，提出了深部开采条件下应深入开展相关研究工作的意见和建议。

By doing so, the temperature ion driving face can be lowered down by 3~7℃ while that on coal mining face by 3~5℃, greatly improved the operation condition and provides a reference for coal mines with similar condition.

系统运行以后，掘进面温度可以下降3~7℃，工作面温度可以降低3~5℃，从而大大改善了采、掘工作面的作业条件，并为类似条件下研究热害治理问题提供了思路。

The reservoir rock types in the region of interest are grain limestone, algal limestone, cryptite, siltstone, muddy limestone and mudstone. The thesis identified as a result of changes in the deposition causing the heterogeneity in plane, and then the geological oil reserves have been calculated in accordance with the areal heterogeneity.3、Based on the data of core analysis, bore logging, array induction imaging log and FMI, porosity and permeability model were built using regression analysis. Through testing 45 rock samples, a, b, m, n value were obtained and used to calculate single-layer oil saturation value using the Archie formula. According to the theory of laterolog and inductolog, resistivity ratio and cross plot were used to identification effective thickness. Effective thickness was identified delicately in 103 wells. Based on the over work, active porosity and oil saturation was calculated accurately.4、According to observation of 100 pieces of the thin slices, cast thin slices and 383m core in three wells, the chief diagenesis in this area were compaction, cementation, denudation and cataclasis. Cementation and denudation were universally influenced active porosity this area. The intergranular pores, residual pores and secondary pores were formed in thin carbonated reservoir of lacustrine facies.5、The influence of reservoir heterogeneity to reservoir calculation was analyzed systematically using actual data. And the conclusions were as follows:①The principal reason leading to oil distribution unequal is interior structural feature of reservoir in structural hydrocarbon reservoir.

确定了由于沉积微相的变化而导致的平面非均质性，进而在平面上按照平面非均质单元计算了石油地质储量。3、利用岩心分析、常规测井曲线与阵列感应、成像测井资料相结合，分岩性利用回归分析方法建立了储层孔隙度、渗透率模型；通过对45块岩样进行岩电试验，获取了a、b、m、n值，利用阿尔奇公式计算了各单层含油饱和度值；根据侧向电阻率和感应电阻率串并联特性，利用电阻率比值法与常规交会图法相结合重建了有效厚度图版，对全区103口井目的层段进行了有效厚度精细划分，通过以上工作，准确求取了储量计算单元内有效厚度参数、有效孔隙度参数以及含油饱和度参数。4、通过对研究区3口井383m岩心观察，100余块薄片、铸体薄片镜下鉴定得出：油泉子油田上、下油砂山组储层主要成岩作用是压实作用、胶结作用、溶蚀作用和破裂作用，其中溶蚀作用、胶结作用最普遍，这两种作用对有效孔隙度影响最大，以上成岩作用形成了原生粒间孔、粒间残余孔和次生孔隙(如粒间溶孔、粒内溶孔、铸模孔、晶间孔等)为主的薄层湖相碳酸盐岩储层。5、利用实际资料，系统分析了油藏非均质对储量计算的影响，认为：①对于构造油气藏而言，油气藏构造及断裂特征是造成油气分布不均的首要原因，储集条件相同的条件下，构造高部位有利于储存油气，油气在垂向的重力分异体现了油气藏内部构造的不均一特征。

The influence of geometric parameter of the feed tube was studied experimentally, a optimal size was found for the best performance.A discreet hydrodynamic model was used to determine the flow distribution in a parallel-reverse solar collector. The size of manifolds was determined by calculation.

具体工作如下：分别在冷态条件和自然辐照条件下实验研究了不同插管结构对阻力和热性能的影响，得出了使集热器传热与阻力性能最佳的插管尺寸。

The selection of neutral-point earthing ways of the hydrogenerator of left-bank power station in the Three Gorges Project should be related to one-point earthing protection of the stator of its generator within one hundred percent framework.

三峡船闸高边坡，因地应力释放、渗流条件变化和岩石徐变，使岩坡产生缓慢位移，改变了人字门的支承条件，从而影响到人字门的正常工作。

However, when the switches are working as linear mode, the relations between the wide output electromagnetic pulse and biased dc voltage, trigging condition, and a function between the transforming efficiency and biased dc voltage, trigging condition need father research.

然而，当开关工作于线性模式时，开关的输出电脉冲的宽度与偏置电压和触发条件的关系、开关的转换效率与触发条件及偏置电压确切关系还需进一步研究。

The arrangement of the lesson form with management is efficiency that contents and somas who the school teaches activity the inside the count for much work, it involve wide, limit the term many, the automatic row lesson system is according to the teaching to plan limit term automatic born course form, from but alleviate row lesson workload, increase row lesson with science.

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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。