| 1. | It seems that pollination also involves certain chance factors .
似乎传粉还包含有某种偶然因素。
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| 2. | Early archegonial development is already evident two weeks after pollination .
颈卵器的早期发育在授粉后两周内就业已明显。
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| 3. | Pollination is the mechanical transfer of pollen from the anthers to the sti gmas .
授粉是机械地把花药里的花粉传送到柱头上去。
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| 4. | Use of controlled pollination is generally confined to various types of research .
控制授粉的应用，一般只限于干不同的研究工作。
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| 5. | They damage female strobili during the interval between pollination and fertilization .
在传粉与受精的间隔期间，他们毁坏了雌球花。
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| 6. | The difference should be discernible in the time of flowering and pollination in orchards .
在种子园的开花和传粉时，可以看出这一差异。
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| 7. | It is obvious that the amount of background pollination will reflect the size of any local source .
显然外来传粉的数量可以反映当地花粉源的大小。
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| 8. | Clearing a surround to the orchard, will significantly reduce background pollination to very low levels .
在种子园周围只要清除出一条隔离带，便可显著地使外来传粉减到最低水平。
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| 9. | The position of female inflorescences of trees in peripheral parts of the crown may also augment the probability of pollination .
乔木的雌花花序在树冠外层的位置也能增加授粉的机会。
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| 10. | Advances in flower and pollination biology in fruit trees
果树开花授粉生物学研究进展
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