Using the many methods, the geomagnetic data of the comparative observation were analyzed and researched.
应用多种方法分析研究了地磁对比观测资料。
From 1984 to 2000, comparative observation of small climates of 8 forest tourist spots in sub-tropical zones was conducted.
2000年，在亚热带地区选择8处森林旅游区进行了小气候对比观测。
Comparative observation with light microscopy and scanning electron microscopy shows: the hatching gland occurs at stage of embryo development.
观察结果表明，胚胎发育期有孵化腺发生。
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