In equatorial and tropical regions the growing season ordinarily lasts all year; at higher latitudes (e. g., the tundra), it may last as little as two months or less.
在赤道和热带地区生长期一般为一年，而在纬度较高的地区(如冻原)，生长期可能为两个月或不足两个月。
It shows that these equatorial westerlies are an important basic current in the low latitudes in Indian Ocean.
分析表明，赤道西风是印度洋低纬地区的一支重要的基本气流。
The equatorial anomaly and the ionosphere greatly affect the arrival latitude of whistler wave at middle and low latitudes.
赤道异常和电离层显著地影响哨声波的到达纬度；
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