hybrid combination短语¹⁴⁴⁹⁷²⁺² 基本例句 杂种组合 The development of elite fertility restorer lines is essential for selecting a hybrid combination with high heterosis. 在杂交品种的选育过程中， 优良恢复系选育至关重要。 chinbullbotany The different characters of the same hybrid combination had a different correlation degree with yield. 同一组合内的不同性状与产量的关联度也不同。 cnki