Based on second seed orchard,the selection of superior area and stand of third generation superior tree of Cunninghamia lanceolata (Lamb.
在杉木二代种子园研究的基础上,确立了杉木第三代优树的选优区域和选优林分。
参考来源 - 杉木第三代优树选择技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Where did China launch the last satellite of the third generation network?
中国第三代网络的最后一颗卫星是在哪里发射的？
By the second or third generation, such old-fashioned attitudes are generally forgotten.
到了第二代或第三代，这种守旧的态度通常会被遗忘。
So far, China has completed the third generation network of China's BDS. It was a new milestone in the nation's space research work.
到目前为止，中国已经完成了北斗卫星导航系统的第三代网络系统，这是国家空间研究工作一个新的里程碑。
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