cold weather primary fuel filter 寒冷气候燃油粗滤器
The query uses a WHERE clause to filter the contents of the weather.bylocation table and retrieve a weather forecast for the specified zip code.
该查询使用 WHERE 子句来筛选 weather.bylocation 表的内容并检索指定邮政编码的天气预报。
Fixing the spectrum width of the weather echo signals, we change theirs mean Doppler frequency and filter them using regression filter. After filtering, we analyze the attenuation of them.
在天气回波信号谱宽固定的情况下，通过改变天气回波信号的平均多普勒频率，分析了回归滤波器对它的衰减情况。
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