It is very important for us to assess the mechanism and variation law of ecological environment and its impact factors from regional scale, which will help to take protective measures.
从区域尺度评价地区生态环境的演化规律及影响因素，对于采取相应的环境保护措施具有重要现实意义。
By using orthogonal design, this paper systematically analysed the variation law of fiber morphology of Chinese fir wood from plantations with different ages, densities and growing sites.
应用正交试验设计方法，系统分析了不同林龄、不同立地条件和不同林分密度下人工杉木林木材纤维形态的变异规律。
The stress variation law with buried depth is analyzed;
采用回归方法分析地应力随埋藏深度的变化规律；
By means of signal analysis technique, the variation law of the tension was studied.
借助于信号分析技术研究了纱线的张力波动规律。
The variation law of brain's structure and function is the hot dot of the present research.
脑的结构和功能变化规律是当前研究的热点。
The vertical distribution and diurnal variation law of the bioaerosol concentration in Nanjing City.
南京市生物气溶胶浓度垂直分布和日变化规律。
The structure variation law of explosion wave in gas explosion was studied on the basis of experiment.
在实验的基础上，研究了管内瓦斯爆炸过程中爆炸波结构变化规律。
Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.
另外，研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。
The variation law of geostresses with depth in gravitational stress field and tectonic stress field is analyzed.
分析了自重应力场和构造应力场中应力随深度的变化规律。
Analyzed the variation law of several representative liquid bulk elastic modulus according to the experimental data.
根据实验数据分析了液体体积弹性模量的变化规律。
Finally, the variation law of average roughness Angle of marble specimen and shear creep model parameters is analyzed.
最后分析各大理岩岩样的平均粗糙角与剪切蠕变模型参数的变化规律。
In this paper, residual stresses and their variation law of skived automotive gears are studied by X-ray diffraction method.
本文通过对刮削后汽车齿轮齿面残余应力的测定，探讨了刮齿表面残余应力的变化规律。
The variation law of AZ31 tensile strength at room temperature was studied after the once deformation and twice deformation.
研究了AZ31镁合金在一次变形和二次变形后的常温抗拉强度的变化规律。
On this basis, variation law of AZ31 tensile strength at room temperature was studied after the once deformation and twice deformation.
在此基础上，研究AZ31镁合金在一次变形和二次变形后的常温抗拉强度的变化规律。
Compared with the test production, the paper obtains the variation law of rock permeability rate and P-Q curve during the high-pressure water.
本文通过对试验成果的比较，得出了高压压水过程中岩体透水率值和P ~Q曲线的变化规律。
The variation law of saturated broken mudstone porosity during creep process is studied by using the self-developed multiphase coupling creep test device.
利用自制的破碎岩体多相耦合蠕变试验装置，研究饱和破碎泥岩蠕变过程中孔隙的变化规律。
Based on the data of observation in fixed location, the pilot study on soil moisture dynamic variation law of farmland in purple soil hilly region has been done.
依据定位观测数据，对紫色土丘陵区农用地土壤水分的动态变化规律进行了初步研究。
Based on the analysis of the variation law of smoke flow in subway platform fire, a concept about critical ventilation speed from platform to concourse was presented.
在分析了地铁站台火灾时烟气流场变化规律的基础上，提出了临界通风速度的概念。
The hydraulic calculation of the uniform flow is the most fundamental problem of the open channel and its variation law is the basis of the analysis in the open channel.
明渠均匀流是明渠水力计算中最基本的问题，对其水流运动基本规律的研究是明渠水流的基础理论和前提。
And the variation law of the hole collapse pressure of extended reach well along with hole Angle and azimuth mostly decided by the status of the stratigraphic in-situ stress.
大位移井井壁坍塌压力随井斜角与井斜方位角的变化规律主要由地层的原地应力状态决定。
The variation law of annual maximum peak discharge time series at Cuntan station of the upper reaches of Yangtze River has been probed, including trends and periods analysis.
从趋势分析和周期分析两方面分析长江上游寸滩站年最大洪峰流量演变规律。
According to the pressure distribution on the airfoil surface, analysis is made particularly of the airflow around the airfoil and of the variation law of cascade characteristics.
根据叶型表面的压力分布，着重分析了叶型的空气动力绕流和叶栅特性的变化规律。
The frictional resistance factor increases with the increase of the flow velocity, decreases with the increase of temperature and its variation law with the pressure is complicated.
摩擦阻力系数随着流速增大而增大，随着温度的升高而减小，而其随着压力的变化特别复杂。
The variation law of slide wave is studied with different thickness of glass plates and the relation between slide wave in two layer medium and the thickness of the two media is observed.
在实验中用不同厚度玻璃板观测滑行波的变化规律，并观测两层介质中滑行波与两种介质厚度的关系。
The volume flow amount is also calculated. The dimension variation law for rolling flange ring and the volume distribution law for its rolling blank are derived from the axial volume flow.
根据轴向体积流动规律导出了法兰环件轧制尺寸变化规律和其各种轧制用毛坯的体积分配规律。
In order to promote the building energy efficiency, we need to have a deep and comprehensive understanding of the variation law of building energy consumption at the technology policy Angle.
为了推进建筑节能，迫切需要从技术政策层面上全面深入地认识建筑能耗的客观规律。
It also discusses the variation law of mechanics feature of soil mass under different percent moisture content condition and makes initial analysis on the stability of floodplain and embankments.
在铁谢—神堤河段选择典型部位开展了土体物理力学特性试验，同时探讨了不同含水率状态下土体力学特性的变化规律，并对滩岸稳定性进行了初步分析。
Variation law of anchoring force is grasped respectively during each stage, which is the scientific basis of bolting design.
掌握了相应于各阶段锚固力上升、稳定、下降的变化规律，为设计锚杆支护提供了重要依据。
Variation law of anchoring force is grasped respectively during each stage, which is the scientific basis of bolting design.
掌握了相应于各阶段锚固力上升、稳定、下降的变化规律，为设计锚杆支护提供了重要依据。
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