The seasonal variations of source contributions were distinct, and spatial variations were perceptible.
污染源贡献具有明显的季节变化，并存在一定的地域变化。
The results are as following: (1)The topographic characteristics are critical for the spatial variations of vegetation.
结果表明：（1 ）影响乔木、灌木和草本层植被格局变化的首要因子都是地形特征；
The trends of air temperature, precipitation and sunshine duration changes exhibited spatial variations over the research regions.
研究区气温、降水量、日照时数的变化趋势在空间分布上存在着一定的区域差异。
The spatial variations of the visible and near-infrared reflectances and the brightness temperatures in the infrared window are analyzed;
分析给出了该地区太阳可见光和近红外波段的行星反射率以及大气红外窗区亮度温度的空间变化；
Objective To analyze the temporal and spatial variations of radon concentration by measuring in some LABS and typical buildings in Chengdu.
目的通过对成都某几个氡气观测实验室以及代表性建筑物的氡浓度测量，分析氡浓度的时间变化特点和垂直变化特点。
The results show temperature spatial variations have high consistency, the variance ratio contribution of the first principal component is about 75%.
结果表明：祁连山附近气温在空间上具有很好的一致性，年平均气温的第一主成分的方差贡献可占总方差的75%左右。
In order to evaluate the effect of different tillage types on soil moisture, the paper analyses the temporal and spatial variations of soil moisture under plough tillage and no-tillage.
为了揭示农牧交错地区不同农田耕作方式对其水分环境的影响过程及规律，选择翻耕地和免耕地两种土地耕作类型，分析不同耕作方式下土壤水分的时空变化情况。
Variations in the painted contours of images also provide a direct method of describing the volume, weight, spatial position, and textual characteristics of things.
绘画中形象的轮廓变化也是直接表现形象的量感，实体感，空间位置和质地特征的方法。
The suggested spatial concept thus enables attractive variations on both levels in realising the educational scenario.
因此，建议的空间概念使得在实现教育场景时，使两个水平具有相互的吸引力。
Spatial and temporal variations in the air movement are desirable for fresh environments.
空气运动随空间和瞬时而变化是新鲜环境的要求。
The rainstorm of the Haihe Vally is known for its great disparity in spatial distribution, its concentration in time distribution, and its great annual variations.
海河流域暴雨以空间分布悬殊、时间分配集中、年际变化大而著称。
The analysis of spatial and temporal variations of air temperature, precipitation, and sunshine hours will be helpful to rational prediction of changes in climate, and corresponding decision-making.
对温度、降水和日照时数时空变化规律的分析有助于对未来气候变化做出合理的预测，并制定相应的对策。
The key and difficulty to exploration and development of buried-hill reservoirs is the prediction and characterization of spatial distribution and variations of the reservoirs.
在古潜山油气藏的勘探开发中，由于储集层非均质性一般都比较严重，储集层空间分布和变化规律的预测和描述是勘探的关键，也是其难点之所在。
The key and difficulty to exploration and development of buried-hill reservoirs is the prediction and characterization of spatial distribution and variations of the reservoirs.
在古潜山油气藏的勘探开发中，由于储集层非均质性一般都比较严重，储集层空间分布和变化规律的预测和描述是勘探的关键，也是其难点之所在。
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