The stress field in surrounding rock and stress concentration area variation rules under different blasting methods was simulared by use of FLAC3D.
应用FLAC3D模拟研究了采动影响下，围岩内应力场的变化特征，不同爆破方式致裂弱化后应力集中区的转移规律。
There is huge variation in how people are affected by loud sound, however, and this is an area where a number of researchers are conducting studies.
这巨大的变化体现了噪音对人的影响有多大，然而，同时这是一个许多研究者正在努力的方向。
However, due to a considerable variation in land area, 1 population density and climatic, geological and topographical conditions, the extent of forest cover differs greatly among the island states.
然而，由于各岛屿国家的陆地面积、1人口密度、气候、地理地形条件等有很大差异，它们的森林覆盖程度也有很大差别。
The variety that is less variation of the protein and fatty content mostly is plant relative do not suit fatty content to form and the early-maturing area.
蛋白质与脂肪含量变异都较小的品种大多为种植在相对来说不适宜脂肪含量形成区域的早熟品种。
The variation of wind profile structure in Naqu area with the process of rainy season is analyzed by using the wind profiler data and statistic method.
本文利用此次探测资料，通过统计分析和典型个例分析相结合的方法，研究了雨季到来前后那曲地区大气边界层的风廓线结构特征。
Spatial variation pattern of water movement parameters in unsaturated soil is the base of parameter estimation in a large area.
非饱和土壤水分运动参数的空间变异规律是大区域参数估计的基础。
In statistics classification, analysis of variance were applied to analyze the coefficient of variation of area of pores.
在统计分类法中，采用方差分析法分析管孔的面积变异系数。
Variation in population characteristics across a geographical area; may be related to environmental gradients or may have no functional significance.
族群特性在穿越一个地理区不同的地理环境之间之变异性。
Both water storage and level variation have not influenced the tectonic stress field in the study area obviously.
水库蓄水和水位变化对研究区构造应力场没有明显的影响。
At head area of the reservoir: the maximum gravity change is near Xiangxi. Monitoring the variation of gravity field and further study should continue in the future.
库首地区：最大重力变化区域在香溪附近，蓄水后的重力场变化需要继续监视和深入研究。
The features of unified and periodical variation between gold mineralization and magmatic activity are closely related to the evolution of tectonic structure of the area.
金矿成矿作用与岩浆活动之间表现出统一性和周期性的变化特征，是和本区大地构造演化密切相关的。
Time dependent calculation for a suddenly imposed pressure gradient has shown that variation of the cross sectional area reduces inertial effect in the contraction flow region.
压力差为阶跃变化的情况下数值计算结果说明了收缩部的断面积的时间变化减少了收缩部的惯性效果。
The earthquakes in high velocity area were mainly occurred in variation belt.
分布在高速区的地震，主要活动在高速区内的速度变异地带。
So, the change tendency of runoff drought index can be used to predict the variation tendency of output of spring wheat in the future of this area.
因此，可利用径流量干旱指数的变化来预测该地区未来春小麦产量变化趋势。
The variation of available silicon was controlled by the variation of weathering intensity in the area studied.
研究区土壤风化作用强度规律性变化是造成区内土壤有效硅含量变化的主要原因。
Based on MODIS NDVI, this paper studied the variation trend of vegetation index in the years of 2000 to 2004 in Ningxia area using quantitative remote sensing technique and slope method.
采用定量遥感技术及斜率法，以全球植被指数MODISNDVI数据作为数据源，对宁夏地区2000—2004年期间的植被指数变化幅度及变化趋势进行了研究。
The process of runoff in urban area is mainly influenced by rainfall process and underlying surfaces variation.
城区降雨径流过程主要受降雨过程和下垫面变化的影响。
Besides, the variation of evaporation from soil as related to leaf area index has also been calculated and analyzed.
并分析了返青后土壤蒸发随叶面积指数变化的规律。
No anomalous local secular geomagnetic variation has been found in the area.
测区内未发现有局部地磁长期变化异常。
Additionally, genotypic (genet) variation of plant dry weight, total leaf area and total stolon length in the experimental plants was found.
植株干重、总叶面积和总匍匐茎长度具有显著的基株间差异。
The variation of sectional area of girders has influence to the deflection of cable-stayed Bridges at the middle of span and forces of cables anchored at the end of side span.
主梁截面面积变异对斜拉桥跨中挠度和尾索索力具有显著的影响。
The variation of local friction coefficient is similar to velocity and local minimum value occurred in reverse flow area.
摩擦阻力的变化趋势与速度类似，在产生逆向流处出现局部极小值。
It can calculate effectively the variation of flame front area, burned volume, and heat transfer area with the process of flame propagation and can be applied to an arbitrary combustion chamber.
该软件能有效地计算火焰前锋面积、已燃区体积和传热面积随火焰传播距离的变化情况。
Results: the variation of tooth position gave no effects to the directions of principle stress around apex area in symmetrical occlusal type.
结果：在对称性咬合，牙位的变化对各牙的根尖主应力方向无影响。
This paper analyses the area distribution and periodic variation of intensity of the urban heat island in southeastern coastal cities of Fujian Province.
本文分析了闽东南沿海城市的热岛强度的平面分布和周期性变化。
The variation of specific surface area and chemical reactivity of nano KH particles treated at different temperatures has been studied.
考察了纳米尺寸的KH颗粒在不同温度热处理后比表面积的变化及其与化学反应活性之间的关系。
In another variation, ditches replace the ridge between borders and the area between is irrigated by blocking the ditches.
在另一种变通方式中，用渠道代替畦埂，堵塞渠道，进行灌溉。
The large scale and amplitude of gravity field anomaly variation appeared in north Shanxi area before the earthquake.
晋北地区地震前后出现了明显的重力场变化，并具有异常范围大、幅度高的特点。
The result shows that runoff drought index and spring wheat climate output of Hexi irrigational area appears opposite variation tendency.
研究结果表明，径流量干旱指数与河西灌溉区春小麦气候产量呈反位相的变化趋势。
The result shows that runoff drought index and spring wheat climate output of Hexi irrigational area appears opposite variation tendency.
研究结果表明，径流量干旱指数与河西灌溉区春小麦气候产量呈反位相的变化趋势。
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