Space-time variation of gravity in Xi'an since 1992 is summarized.
概述了1992年以来西安地区的重力场时空变化特征。
The time variation and direction variation of atmospheric loss are evaluated initially.
初步评估了大气损耗的时空差异；
The example of stability of a ship motion and criterion is given for linear non-time variation.
对线性非时变系统，本文给出了船舶运动稳定性的实例，及其数学物理上对这类问题稳定性的判别法。
HF radar backscatter from the ocean surface shows nonlinearities and time variation of its spectrum.
高频波段海洋回波信号表现了非线性和频谱时变性。
As you perform the method validation for a method, you can confirm that the retention time variation is acceptable.
只要你做了方法的验证，就可以保证保留时间变化是可接受的。
In this paper, The stability of a ship with linear time variation and non-time variation motion system was discussed.
本文讨论了船舶线性非时变系统及线性时变系统运动的稳定。
The OD matrix then has reflected in the specific time interval along with the time variation transportation demand pattern.
OD矩阵则反映了特定的时段内随时间变化的交通需求模式。
A fault detection and diagnosis method based on the rule and time variation was presented based on the normal diagnostic expert system.
根据航天器推进系统的时变性特点，在规则的专家系统方法基础上，提出了推进系统面向时态的故障检测和诊断方法。
According to monitored data of acid rain in Xi 'an City from 1987 to 2000, the time variation and its chemical composition was analyzed.
依据1987—2000年监测数据，分析了西安市酸雨及化学成分的时间变化。
Using rich history earthquake data, author studied some feature of strong earthquake activity in space and time variation in North China.
本文利用华北丰富的震史资料，分析该区强震活动时-空变化某些特点。
Combining resisting force effect factors time variation model, the static and dynamic test, which is in different situation, is simulated.
结合抗力影响因素时变模型，模拟不同状态下的桥梁静动载试验的过程。
Third, the basic observational system is weak, and a variety of "physical field" information related to space time variation can't be provided.
基础观测系统薄弱，尚不能提供随时空变化的各种“物理场”的信息。
The time variation of the cosmic ray flux is one of crucial problems in the field of cosmic ray physics, solar geophysics and astrophysics, etc.
宇宙线强度随时间的变化，是宇宙线物理、太阳地球物理和天体物理等交叉学科中的重要问题之一。
Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。
The identifying model of time variation was built, on the basis of radial basis function neural network to solve the problem of diagnosis depth.
利用时变基频的求解方法，建立基于径向基函数网络的时变基频识别模型，解决“深度”复杂性问题；
The field evaluation results of this system show that real-time variation date of WSOC in ambient fine particle can be provided rapidly and steadily.
实际运行结果表明，该系统能够快速稳定地获得大气细粒子中WSOC的实时变化数据。
On the basis of time variation of still water load effects, a new method was developed for the combination of still water and wave induced load effects.
基于静水载荷的时间变异性，导出了一种确定静水载荷效应与波浪载荷效应组合极值的新方法。
The performance of HF data transmission systems is badly constrained by the HF channels what are characterized by the rapid time variation and dispersion.
高频信道的变参性以及时间弥散特性严重影响短波数据传输的性能。
On the basis of the time variation of still water load effects, a new method is developed for the combination of still water and wave induced load effects.
基于静水载荷的时间变异性，导出了一种静水载荷效应与波浪载荷效应组合的新方法。
As to the time variation, non-linearity and long range dependence in VBR video traffic trace, a novel method of feature based on multi-scale decomposition was proposed.
针对其时变、非线性以及长相关性等特点，提出一种多尺度分解的VBR视频业务的特征提取方法。
Given the proliferation of hacker attacks, Run-time Variation 1, shown in Figure 8, is the recommended pattern for the Directly Integrated Single Channel application pattern.
鉴于电脑黑客的攻击能力不断加强，如图8所示的运行时变种1是适合于直接集成单通道应用程序模式的一种值得推荐的模式。
Using this interferometer, the time variation of the average electron density of a low pressure pulsed plasma has been measured and the experimental result is quite satisfactory.
用此干涉仪测量了低气压脉冲放电产生的冷等离子体的平均电子密度随时间的变化，取得了较为满意的结果。
In this paper, the stability of construction for the bridge is studied by the method of time variation mechanics, and it describes well the structural behavior during construction.
本文按时变力学分析方法，研究了大跨度拱桥的施工稳定性问题，较好地模拟了施工过程的结构行为。
By taking account of nonlinearity, time variation and unsteadiness of idling process in engines, this paper studies the application of fuzzy control theory in the idling speed control.
考虑到发动机怠速工作过程的非线性、时变性和不确定性，研究了模糊控制理论在发动机怠速控制中的应用。
However, it lacked significance of statistical to study the time variation of the cosmic ray with even high energy before, because the cosmic ray flux with even high energy is very low.
由于甚高能宇宙线的低流强，一直以来甚高能以上能量宇宙线时间变化的研究缺乏统计意义。
As the electrical parameters bear a relation to the distribution and time variation of the induced currents, the parameters can be determined by analyzing the feature of these currents.
由于电气参数与线圈中感应电流的分布和变化情况有关，可以通过分析感应电流的特性确定电气参数。
Automatic block interval time variation of Nanjing-Chuxian Section on Jin-Pu Railway Line designed by our institute won the excellent design prize of the First National excellent Designs.
我院设计的津浦线南京至滁县段自动闭塞变更间隔时分工程项目荣获第一届国家优秀设计奖。
Firstly, the characteristics of debris-flow sediment transportation such as intensity, granule gradation and space-time variation were discussed on the base of continuous observation data.
在连续观测资料的基础上，对泥石流输沙的强度、级配和时空分布特征进行了分析。
In the meantime the time variation of the water level in the ditch has been taken into account, therefore the groundwater head are time-varying as the groundwater flows toward the drain system.
在讨论这个问题时，又考虑进了排水沟中的水位也是随时间而变化的，因此在地下水流动过程中的任一瞬时，其地下水头差也是一个变量。
In the meantime the time variation of the water level in the ditch has been taken into account, therefore the groundwater head are time-varying as the groundwater flows toward the drain system.
在讨论这个问题时，又考虑进了排水沟中的水位也是随时间而变化的，因此在地下水流动过程中的任一瞬时，其地下水头差也是一个变量。
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