Firstly, the system dynamics model of the LRE and the structural and damage models of the critical component are built. With these models the computations and analyses are carried out. Some results are obtained. For example, developed is the LRESim, a universal simulation module library for the LRE, which can be applied to investigate the related problems of the startup transient and the steady state process, or to demonstrate the different schemes in the phase of design of LRE. The finite element method and the intensity calculating method are used to analyze the structural dynamic characteristics, respectively. It is a kind of preferable method in analyzing real-time online structural dynamic characteristics at present. The ICM acts as a main online computing method, while the FEM provides offline correction for the computing results. The damage-calculating model based on the continuous time is built for the material constructed turbine blades. The simulation computations are carried out. The results indicate that the model is suit of this research. Secondly, the main innovative works are introduced.
分别进行了发动机系统动力学模型的建立与仿真分析、关键部件结构与损伤模型的建立与仿真分析的研究，得到如下结果：开发了一种比较通用的液体火箭发动机模块化仿真模块库LRESim，可用其仿真研究发动机起动、稳态等工作过程以及不同的发动机系统方案设计中的有关问题；通过比较研究有限元方法与强度计算方法在涡轮叶片结构动特性分析中的适用性问题，提出以强度计算方法在线应用为主，结合有限元方法的离线修正是现阶段进行结构动特性实时在线分析的一种较好方法；建立了涡轮叶片材料基于时域的损伤计算模型，经仿真计算分析，表明该模型适应本文的研究要求。
For the probability of two photon excitation is in direct proportion to the squared intensity of laser, both the femtosecond laser with extremely high pulse intensity and the microscope with high numerical aperture become critical components in the system, and therefore much detail information is provided on this part...
由于材料发生双光子激发的几率与激发光强的平方成正比，所以具有极高瞬时光强的飞秒激光器和可以对光束进行强聚焦的显微镜装置成为系统的关键部件，对此进行了详细的说明。最后，给出了部分利用上述加工系统所获得的初步实验结果。
With the gained relationship between stress and dissolving time upon the dissolution stage the mechanism of variation of mechanical properties of rock salt considering dissolving effect, which is shown as critical stress intensity factor of crack that is decreased because of dissolving, has been concluded.
通过对溶解阶段应力随着溶解时间的变化关系的研究，得出溶蚀作用下岩盐力学性质发生变化的机制在于岩盐发生溶解从而使得岩盐裂纹的临界应力强度因子降低。
Through comparison-study on several plans, it is pointed out that different forecast data and measures may lead to different development intensity critical control plans.
通过多个方案对比研究，指出不同的预测数据和纠正措施将产生不同的项目开发强度临界控制方案。
Well bead equipment long-term job at high degree of mineralization sewage in, And humidity compares high, So, In design process, We not only consider go its applicability, Credibility, And give back consider go to material's request and antiseptic treatment, Critical accessory adopt high intensity, Endures corrode material.
井口装置长期工作在高矿化度的污水介质中，并且湿度较高，因此，在设计过程中，我们不但考虑到这的适用性、可靠性，而且还考虑到对材料的要求和防腐处理，关键零件选用高强度、耐腐蚀材料。
The precuring is a critical phase in the quick cement intensity test because it is an important premise of the 28 day compressive strength's prediction.
文章通过大量的试验和数据，进行了不同湿养时间下水泥快速强度与标准强度相关性的分析研究，验证了水泥强度快速检验过程中合理的养护制度。
The precuring is a critical phase in the quick intensity test of cement because it is an important premise of the 28-day's compressive strength's prediction.
通常意义上的水泥强度是指依据GB/T17671-1999《水泥胶砂强度检验方法》进行水泥胶砂试件成型，经过脱模、标准养护并分别在3d，28d不同龄期内进行抗折、抗压强度试验后得到的强度值。
Identifying models both for raingauged and ungauged areas were constructed respectively at the confidence level of 95% with respect to the conditions of Beijing mountaineous areas. For the risk zones with raingauges, alarm and recession critical rainfall intensity was determined by forecasting model map of effective rainfall magnitude and intensity.
根据北京山区的实际情况，在确保有一定的预测精度，其可靠性为95％以上的条件下，分别建立其有雨量站和无雨量站的判别模型，即有雨量观测站的危险区可应用实效雨量与雨强的预报模型图，依据实效雨量确定警戒和避难的雨强临界值，由此采取相应措施。
At the same time, counterforce, displacement and axial stress of a section on the nodes of BHA are listed in the form of sheet, which provides a basis on studying the fatigue life of BHA.(4) Based on mechanical analysis of BHA, fracture mechanics is used to discuss the stress intensity factor.￡, and the critical stress intensity factorKir of the opening crack propagation mode.
在BHA力学分析的基础上，应用断裂力学知识讨论了张开型裂纹的应力强度因子和断裂韧性，并应用形状改变能判据对构件屈服区进行了渐进分析，扩展了线弹性断裂力学的应用范围。
No matter it is for enlarging the intensity of training or for testing new weapons, the crash of United States Air Force strategic bombers reflected the world`s most formidable nation's army`s intense war awareness and the pursuit for exquisite techniques as if in the critical war situation, but not the low security level of the United States Air Force`s training, and also not the false appearance that the American fighter planes get aging.
不管是由于训练强度加大还是因为试验新式武器，美国空军战略轰炸机的坠毁，反映出的都是世界最强大国家的军队如临大敌的强烈战争意识和精益求精的技术追求，而不是美国空军训练安全水平低，更不是美国战机老化的假象。
In the second part of the dissertation, the delimiting method of the stope width mining on high pressure aquifer is decided for the example of 9103 stope in Dong Pang Coal Mine. The critical stress intensity factor is tested applying the hydraulic fracture technique. The technique of monitoring face floor water bursting indications is researched on the basis of studying the practical hydrogeology and engineering geology condition. The 9103 stope is monitored for 21 days. The monitoring data is analyzed applying the Reissner board bending fracture theory, and the floor stress intensity factor is computed. Applying the floor water bursting criterion of fracture mechanics, it is concluded that the stope water bursting will not arise. The mining practice of the stope proves the conclusion right.
论文第二部分结合东庞矿9103工作面的带压开采，研究了底板工作面斜长的确定方法；利用水压致裂技术求得了底板临界应力强度因子，结合工作面的实际水文地质工程地质条件研究了底板突水前兆实时监测技术，监测的项目包括应力、应变水压、水温，对9103工作面进行了21天的监测，利用第一部分的研究成果对监测数据处理，计算了底板裂隙应力强度因子，运用断裂力学突水判别标准，判断9103工作面不会突水，9103工作面实际回采结果与此相符。
The generable proximate formula of dynamic stress intercity factor of simple edge crack found bar specimen in three point bending of NanLing marble is gotten and the critical dynamic stress intensity factor of the specimen is also obtained in medium load ratio.
在中等加载速率下，推导出对大理岩带垂直切口三点弯曲圆棒梁试件动应力强度因子的一般近似公式和断裂时的临界动应力强度因子的表达式。
The model includes that the relationship between median diameter, as well kinetic energy, of raindrop and rainfall intensity obeys logarithmic function, the critical slope degree of soil erosion is 38.4°～43.0° in test area and the best multiple index of rainfall erosivity value is /100. Employing the prediction model, the soil erodibility value, the accelerated value of excavation slope, roadbed slope, construction site, borrow pit, service road and other temporary occupation land and the loss-spoil ration of waste pile were examined. Finally, the integrated soil and water conservation measures in highway construction project have been suggested.
从而建立了凉山州天然降雨雨滴中数直径与雨强的关系和降雨强度与动能的关系，分析了高速公路引起水土流失的侵蚀性降雨标准、侵蚀转折坡度及不同流失区流失量的大小关系，给出了高速公路水土流失预测模式中降雨侵蚀力尺值的最佳复合指标，估算出路堤边坡、路堑开挖边坡、路基、临时施工用地、取土场、便道和其它临时占地的可蚀性K值、加速侵蚀系数A值以及的弃土场的流弃比B值，最后针对高速公路不同防治区水土流失特点提出了相应的综合防治措施。
The ceitical valueis stimulus intensity corresponding to the critical point.
临界点所对应的刺激强度为临界值。
The results show that the critical electric field for instant fracture in silicon oil decreases linearly with increasing the applied stress intensity factor.
结果表明，在硅油中发生瞬时断裂的临界电场强度随外加应力强度因子的升高而线性下降。
PLP parameter is extracted using feature compensation method and three concepts of auditory psychology including critical-band spectral resolution, equal-loudness preemphasis and intensity-loudness power law of hearing.
使用特征补偿的方法，并运用听觉心理学的三个概念：临界带谱分析、等响度曲线、强度响度听觉幂率，实现了PLP语音特征参数的提取。
It shows that, under the growth temperature of 400℃, the critical thickness for 2D growth is 6 ML, which coincides with the results of RHEED intensity oscillation.
由二维生长转变为三维生长的临界厚度为6ML。这与RHEED强度振荡观测到的结果完全一致。
The critical fluxes decreased with the increases of both MLSS concentration and SCOD, while increased with the increasing of the aeration intensity.
研究发现，污泥浓度和SCOD均对临界通量测得值呈负影响作用，而曝气强度则起正作用。
The critical scale is estimated under adefinite excitation. The critical scale is not a fixed size at which the PL intensity from Siand LCs equal to each other.
在激发强度确定的情况下，我们估算了样品的临界尺寸，即内部与外部PL强度相等的尺寸。
Plane strain fracture toughness (KIc). The critical value of the stress intensity factor (i. e., at which crack propagation occurs) for the condition of plane strain.
平面应变断裂韧性（KIc）：平面应变条件下应力强度因子的临界值（即达到该值时裂纹发生扩展）。