循环变化的英文
cycle variation
cyclic change
例句与用法
更多例句： 下一页- The following example shows some possible variations on a loop
下面的示例演示几种可能的循环变化形式。 - Filter cartridges - test methods - resistance to flowrate cyclic variations
过滤盒.试验方法.耐流率循环变化的性能 - Because it worked for so long , it was able to track environmental changes through many annual cycles
因为它工作了如此长的时间，它能通过每年的自然循环变化来跟踪环境的变化。 - Our company ' s multicolored , colorful spherical bulb adopted the most advanced asic to control the color changes , seven color cycle changes , looks like a dream , suitable for landscaping , lighting environment
本公司生产的五彩、七彩球形灯泡，采用最先进的专用芯片控制色彩变幻,七彩色循环变化,色彩绚丽,如梦如幻,适用于美化、亮化环境。 - Then the paper investigated the regularity of different oil indices using time series statistical analysis method , which suggested that there are some regular components in it , including long - term secular trend , seasonal component and long - term cyclical component . the irregular component also plays an important part in it , mainly including the policy of opec , war , all kinds of international convention for the prevention of pollution from tankers and so on . and then a study of simulation and forecasting performance of arima time series model was conducted to crude oil indices , evidence shows that arima model performs better , especially for short - term forecasting
在此基础上，本文以时间序列分析作为基础研究手段，以德国海运费率指数公布的1980年1月至1999年12月的四类油运费率指数为研究对象，分析了四类油运费率指数的长期变化趋势、季节变化规律、长期周期循环变化规律和不规则变化规律，并应用arima时间序列模型对160000dwt以上的原油运费率指数进行了短期预测，取得了较好的预测效果。
