The content of lead had an obvious seasonal variation.
铅具有较明显季节变化。
There were obviously seasonal variation of polychaete quantity.
数量有明显的季节变化。
There is little seasonal variation in the incidence of the disease.
在该病的发病率方面存在着极小的季节性差别。
The characteristics of dust' s seasonal variation are significant.
沙尘天气的发生具有明显的季节变化特征；
The attack seasons were mostly in winter and during seasonal variation.
发作季节主要为冬季及季节更替时。
Seasonal variation was single peak that spring was the high incidence period.
发病季节分布呈现春季单峰。
Circular distribution analysis was used to study the onset seasonal variation.
圆分布分析探讨脑卒中患者发病时间的季节规律。
The seasonal variation index (SVI) is used to fit the seasonal trend of power load.
季节变动指数(SVI)用来拟合电力负荷的季节性趋势。
The seasonal variation of zooplankton biomass was in agreement with that of phytoplankton density.
浮游动物生物量与浮游植物密度的季节变化趋势相一致。
In forecasting, it is unsuitable to apply Autoregressive model to time series with seasonal variation.
对于具有季节变动的时间序列，使用自回归模型进行预测是不适宜的。
The seasonal variation that the organic phosphorus transformation is to present the state of fluctuating.
土壤有机磷转化作用的季节变化是呈波动状态。
Because of the cosmetics jamming pore the seasonal variation reasons and so on diet rule does not create most.
多数因为化妆品堵塞毛孔、季节变动，饮食不规律等原因造成。
As shown in our study long-term tendency of thunderstorm and lightning days have significant seasonal variation.
研究表明，雷暴日、闪电日的长期趋势有明显的季节变化。
Because of the cosmetics jamming pore, the seasonal variation, reasons and so on diet rule does not create most.
多数因为化妆品堵塞毛孔、季节变化，饮食不规律等原因造成。
The seasonal variation of surface heating field is obvious:the intensity is strong in summer and weakness in winter.
地面加热场强度的季节变化明显，夏季强、冬季弱；
The results showed that methane emission had obvious daily and seasonal variation law in rice-duck complex ecosystem.
结果表明：稻鸭复和生态系统中甲烷排放具有明显的日变化规律和季节变化规律。
The temporal variation of it has secular change, seasonal variation, irregular variation, and other scales variation.
重力场的时变有长期变化、季节性变化、不规则变化和其他多尺度的变化。
Using the current data in the Qiongzhou Strait, we studied the seasonal variation characteristics of residual currents.
本文通过利用多年的琼州海峡海流实测资料，研究了琼州海峡潮余流场的季节性变化特征。
Based on the COADS data, the feathers of the seasonal variation and interannual change of the Oceanic Warm Pool are studied.
根据COADS资料研究了大洋暖池的季节和年际变化特征及成因。
It was indicated the release rates of POC, TN and TP from sediment manifested obvious region diversity and seasonal variation.
结果显示，桑沟湾沉积物中POC、TN和TP的再溶出速率存在明显的区域差异和季节性变化。
The East China sea model has much higher resolution grid, which has simulated seasonal variation of mixture and stratification.
渤黄东海环流模式的网格具有更高的分辨率，模式很好地模拟黄东海混合与层化的季节演变规律。
Seasonal design flood should not only satisfy the flood prevention standard but also reflect seasonal variation characteristics.
分期设计洪水既要满足防洪标准，又能反映洪水的季节性变化特征。
Compared with the higher layer, the passage intensity in the lower layer is more stable and has more evident seasonal variation.
高层与低层相比较，低层通道强且稳定，季节变化规律也较明显。
This means the seasonal variation of the aerosol spectral optical depth is mainly determined by the variation of surface visibility.
而不分级的光学厚度季节起伏主要由各季节的几率能见度决定。
The seasonal variation of blocking in the region of eastern atlantic central pacific and from east-european to urals is the most obvious.
阻塞高压季节变化最为显著的地区是大西洋东部、东欧至乌拉尔山、太平洋中部。
But it warned that, given the likely strong seasonal variation in attendance, it was not possible to predict future attendance or profits.
但公司也提醒说，考虑到游客量可能有相当大的季节性变化，所以无法对今后的游客量和收益做出预测。
The global distribution drift and seasonal variation of the sea ice are simulated and analyzed by using the monthly climatic atmospheric data.
利用大气月平均气候资料，利用冰海洋耦合模式对全球海冰的分布及其季节性变化、海冰漂移进行了耦合模拟和分析。
Conclusion: The twin birth ratios of Qingdao ascends from 1987 to 2002. The difference in distribution and the seasonal variation are notable.
结论：青岛地区1987~2002年双生子出生比呈现上升趋势，有明显季节和地区分布差异。
This paper reported the observations on the composition and distribution of synanthropic flies and its seasonal variation from 1991 to 1993 in Hubei province.
笔者于1991～1993年对湖北省蝇类季节消长规律、分布和蝇种构成进行监测。
This paper reported the observations on the composition and distribution of synanthropic flies and its seasonal variation from 1991 to 1993 in Hubei province.
笔者于1991～1993年对湖北省蝇类季节消长规律、分布和蝇种构成进行监测。
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