查询词典 variation

The results show that the variation in elevation angle of roof beam can be controlled by the equilibrium jack in moving support and the stress at different parts can be adjusted according to the variation of the support load in coal caving process, greatly improving the adaptability of the 2-leg shield support in top-coal caving working face.

分析结果表明，通过平衡千斤顶可以控制移架过程中顶梁仰角的变化，并可调节支架各部位受力以适应放煤过程中顶梁外载的变化，从而提高了两柱式支架对放顶煤工作面围岩活动规律的适应性。研究结果对于现场操作及新架型的改进都有一定的指导作用。

For the variation of short period of astronomical factors, whether for local time or local sidereal time and lunar phase there is the phenomenon of occurrence of concentrating a interval time for the earthquakes. For the short variation of earth rotation this phenomenon is clear; either the earthquakes occur in most fast or in lowst of earth rotation.

对于天文因素的短周期变化，无论是对于地方时，地方恒星时与月相，都有集中发生在某一段时间的现象；对于地球自转的短周期变化更是比较明显，要么发生在其变化最快时期，要么发生在其变化的最慢时期。

One QTL for SRLD was detected on chromosome 12 with about 12%variation, and two QTLs for SRLD were detected on chromsome 2 and 11, and about 13.37% and 18.23% of total phenotypic variation were explained.

这与以前的报道所得到种子根长相关的 QTLs 所在位点不一致，这种不一致性可能是由于不同遗传材料及不同实验条件的差异所致，也可能是因为表型测定时期不同所致。

This paper first presents the variation regularity of active seeking range along with the change of relative bearing ,and then derives out the equations of deflection firing angle considering the variation of seeking range. A method for the calculation of optimal deflection firing angle of snake search torpedo is provided at last.

本文根据主动自导作用距离随舷角变化规律，推导了考虑到自导作用距离随舷角变化时求解最优提前角的迭代公式系，最后提出了蛇行搜索鱼雷射击的最优提前角求解方法，并给出了有关结论。

The variation is due to the variation of the magnetic reaction.

这些变化是由不同磁性的永磁颗粒的相互作用造成的。

As the results suggest that, during the period of 1800～2005, the 82-year and 48-year quasi-periodic components are available for the secular variation of dipole magnetic field, which are not directly related to the periodicity of the length-of-day variation.

结果表明，1800～2005年期间，偶极子磁场长期变化有82年和48年准周期分量，它们与日长变化的周期没有直接关系。

This article considers the type of variation which has been investigated via a form of linguistic geography, concentrating on regional varieties and the factors involved in social variation in language use.

这篇文章将集中研究地区方言和社会方言及其形成的主要因素。

Based on the theories of language variation and lexical diffusion, this paper describes and analyzes the variation and change of Xuanhua dialect from various angles. It combines not only the diverse methods of descriptive linguistics, linguistic geography and sociolinguistics, but also the data of apparent time and real time.

本文在综合运用描写语言学、地理语言学和社会语言学等学科理论与方法的基础上，以语言变异理论与词汇扩散理论为理论依据，将显像时间研究材料和真实时间研究材料结合起来，对宣化方言变异与变化问题进行多角度描写、分析与研究。

The maximum and the maximal variation of sea ice appear in Weddell Sea and Ross sea, while the minimum and the minimal variation of sea-ice appear inAntarctic Peninsula.

南极海冰最多和最少期分别出现在 9月和 2月；威德尔海和罗斯海地区海冰最多、变化最大，南极半岛地区海冰最少，变化也小；近 35年来环南极地区的海冰有明显的减少趋势。

In this paper, the control factors of anaerobic digestion are discussed based on the summarization of present research literatures. The mechanism of the effect of pH and Eh on anaerobic digestion is analyzed with microbiology and biochemistry theory. The equation describing the effect of pH variation on Gibbs free energy variationΔGis derived using Nernst equation, and the specific control conditions in engineering are summed up according to the present research achievements.

在总结已有文献的基础上，讨论厌氧消化过程的控制因素，并利用微生物学和生物化学理论分析了pH值和Eh对厌氧消化过程影响的机理；利用Nernst方程推导出了描述pH值变化对吉布斯自由能变化ΔG的影响的方程式；并结合已有的研究成果，总结了实际工程中的具体控制条件。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。