geomagnetic seasonal variation [地物] 地磁季节变化
index of seasonal variation 季节变动指数
moving seasonal variation [统计] 移动季节变动
index number of seasonal variation [统计] 季节变动指数
adjustment for seasonal variation 季节性变动调整
seasonality seasonal variation 现象称为季节性
indexes of seasonal variation 季节变动指数
linearly changing seasonal variation [统计] 线性变化型季节变动
linear seasonal variation 线性变化型季节变动
Seasonal variation of soil enzymes are July>May and September.
6、土壤酶活性季节变化规律是:7月酶活性>5月、9月酶活性。
参考来源 - 大兴安岭兴安落叶松林土壤微生物与土壤酶活性研究The results show that the stream water of each watershed in reserve is weak acidic or neutral, Ca2+ is the most abundant cation, in the case of anions,HCO3- presents the highest concentration, and all ions show seasonal variation.
保护区不同支流集水区pH值均呈弱酸性至中性,阴离子均以HCO3-为主,阳离子均以Ca2+为主,且集水区溪流水离子浓度呈现出一定的季节动态。
参考来源 - 原始红松林生态系统水化学特征研究The seasonal distribution of phytoplankton has such characteristic: In summer(in August) the biomass of phytoplankton is much larger than that in spring(in May). This feature reflects the law of phytoplankton biomass’seasonal variation.
从该海区浮游植物的数量季节分布看,夏季(8月)浮游植物的数量远高于春季(5月),这种变化反映了渤海湾区域浮游植物数量的季节变动规律。
参考来源 - 渤海重要渔业水域生态环境质量状况评价·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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。
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