self-pollination and cross-pollination
self-pollination and cross-pollination
自花授粉和异花授粉
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Cross, self and opening pollination were conducted in the green house, the subsidiary pollination by insects was carried out outdoors.
在温室大棚设施栽培条件下开展杂交、自交、自由授粉，野外昆虫辅助授粉。
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